You know me, a few thoughts.
When I first built my shop, it was an oversized two car garage, one car deep, plus about six or 8 feet for my various tools. When I was crushed during the tornado, I added another 25 feet on the back, so it was two cars wide, and two cars (big pickups) deep, plus room on both sides and also in the length. From looking at yours, yours is somewhere in the middle on those sizes.
Mine isn’t finished on the inside, just 2 x 4 studs. For my drill press, my radial alarm saw, my scroll saw, etc.: I screwed and glued horizontal two by fours to two of the studs. And then I glued and glued and screwed a cross piece about 15 inches out from the wall. Then I ran a 1x3 at about a 30° angle back to a 2x4 cross piece between the studs on the bottom side. Basically, I made a heavy duty shelf where I can jump on the thing and bend the walls, but the shelf doesn’t fail. Then I put plywood on top of the shelf, and that’s what my drill press, my radio alarm saw, etc. are bolted to.
I put them at the height I wanted, and I still have 90% of the storage space below free and clear. No cabinet to work around.
On one wall, from left to right, I have my drill press, and centrally, I have a 15 inch Makita chopsaw. I’m pretty sure it was made for wood, but I also use the 14 inch metal blades on it to cut all kinds of steel and aluminum. To the right of that, I just stuck a 2 x 4 out from the wall horizontally and put an angle brace below it. The height of the base of the drill press, the surface of the chopsaw, and the wooden brace are all the same, so I can put on a 10 or 12 foot long piece of whatever, and cut it with the chopsaw where I want, or drill it where I want. The brace on the right side is only about 5 inches inside the side of the garage door, which is about 4 feet further. If I have to cut something longer, I can clamp another 2x onto that brace with a C clamp, and I can cut 20 footers by just wiggling my chopsaw a little bit to square the cut. All by myself, and I’m a feeble old man.
I use my radial arm saw mostly for finish carpentry stuff, and I have similar braces sticking out of the wall on either side. They don’t interfere with pulling the cars in an hour or me walking by. I probably have it 40 inches or 45 inches off the ground. When I back in the town cars, the wide sides fit underneath. I have reflective strips on the far back wall to guide me.
I still use a stick 40yr old stick welder. I mounted it about 6 feet in the air the same way, and I use a 1x2 stick with a loop on the end to turn it on and off and to adjust the amperage. It’s not in the way of anything.
For my circular saw, I made a “Murphy bed” table. I put horizontal two by fours in between the studs to accommodate a 4 foot wide piece of plywood. I made a 4 x 8 sheet of plywood into a table top by simply building a 2 x 4 frame underneath it. On the wall side, I screwed it to those two by fours with the door hinges. On the outside side, I made two legs out of one by threes. I can jump up and down on the whole thing, and I’m no small boy It’s probably 35 inches off the floor. When you fold it down, it’s a 4 x 8 work table. When you fold it up, the two legs on the outside end fold up far above your head. I have 9‘8“ to play with, but you could simply trim your table down, so it folds up under your ceiling.
I have outlets in two places on that table wired with Romax to the wall. I left about 3 feet of Romax free, so it simply flexes as I fold the table up and I fold it down. If I had to do over again, I would’ve used a heavy duty extension cord type cable, but it has been there since 98 and hasn’t failed yet
I mounted my table saw in the middle of that 4 x 8 sheet, so the surface of the table saw was the same level as the 4 x 8 sheet. It makes it infinitely easier to handle and cut big things by yourself.
From the center line of the blade, on the long sides of the 4 x 8 sheet, I made 1 inch markings to the end of the table on the outside side, and about 2 feet in on the inside side, and then I use a long straight edge to mark those lines with a sharpie. You can line up things you want to cut without ever pulling a tape measure. And again, it folds out of the way. The foreign is half covered with painted glue, but I can still line up things on the table. After 30 years, I’m probably creeping up on replacing the plywood.
I’m saying all this thinking of your welding table. On that same table, you could lay down a piece of ceramic tile bathroom backing board, and lay a piece of quarter inch plate on top of it, and bang, you have a welding table without burning your house down. You could secure it in place with a few screws or bolts, and remove it anytime you want.
Another thing about that table, I regularly screw things down to the table when I want them to hold steady when I’m doing whatever to them. That doesn’t include the cute little brunette. I have a cheap sheet metal brake that I can mount with four bolts on the edge of the table for little things I want to fabricate. I cut glass on it, and it is my go to workbench for all things. I have granddaddy’s 6” vice mounted further back in the shopping a work bench, but I’m looking for another one to bolt down to the table that I could take on and off occasionally.
You get the idea. Universal fold away table. I’ll try to send a couple pictures, but the whole shed of miracle is so overwhelmed with crap and trash from when I was sick and injured, you’d never see these things.
And, as regards a vice on top of a brake drum, let’s make sure it’s a Ranger brake drum.
Hope it helps.