Some quick thoughts, some of which I've done, and others are thinking out loud;
Incorporate a 2" hitch into your front bumper and when you can afford a winch you have the option of front or back mounting if you run heavy cable to the back.
I'd go body lift and fender trimming as needed to save money and keep the cog low. IMO the axles are so close to each other that a suspension lift isn't needed.
Do the axle swap before buying gears and tires. I'm running 31" and 4.10 gears with a 4.0l and am really happy. Eventually I'll get d-35 and 8.8 and I'll get 5.13's to turn my C$150.00 5-35"x10x15" CL find. Though a doubler might be built for slightly more or less than the cost of a re-gear, depends on how handy you are.
Make sure your spare is the same size, especially if you start welding in your rears.
You can easily turn regular non factory locker into a limited slip with a $5.00 washer...search. I've done this to my d-28 and a 9".
More flex, I would extend the radius arms and run longer coils with less ppi. I bought but haven't tried yet '79 full size Bronco coils.
The rear, maybe a shackle flip and blocks, I don't really know if that would work as I haven't looked at mine to see.
My costs and upgrades so far;
'85 b-II with 4.0l and 5-speed = C$300.00 [but very rusty]
stock factory 4.10 front d-28 and limited slip rear 7.5 = C$200.00
front homemade limited slip; washer and oil = C$35.00
5-31"x8"x15" Baja Claws with~ 75% tread left= $450.00
mounting and balancing = C$100.00
front and back receivers = C$70.00 plus some welding and scrounged metal
rust repair; new drivers floorboard = C$65.00 plus some welding and scrounged metal
rear air shocks, a quick fix for sagging rear springs = C$135.00
There must be a few things I'm forgetting as the total cost so far is ~ C1700.00 for a capable on/off road rig. If I'd spent a little more off the bat for a rust free rig I'd be way ahead as far as my time and stress levels go, though having the 4.0 already installed was why I bought it. With what I've learned in the last couple of years I would attempt that swap with very little hesitation.
Good luck,
Richard