You don't need drop coils for drop beams. The beams are built to correct the spindle mounting point only. Your truck has NO idea that the drop beams are on.
Any time you pull the suspension apart, an alignment is in order. Either you attempt it yourself or you go to a shop. Installing new balljoints means alignment. If you do new coils, alignment. If you change out tie-rods, alignment should be done unless you know everything was right before hand and you measured the distances.
Eccentrics will correct most 2" coil changes. Sometimes you can get away with more of a drop by cutting coils, but never make cutting coils the first method. Cut 1/4 coil at a time and re-install. Never cut more then a 1/2 coil off and expect the ride to be the same or be able to get it into specs. Some people get lucky, I am not saying it "can't" work. Just try doing it right first.
To the OP, why won't your sway bar mounts work in the stock location? I am dropped 5/6 and the only thing I did to the front was flip the sway sway bar IIRC. I know my sway bar looks just like it did stock, its just a bigger aftermarket bar. I used chassi tech beams and coils from AIM. I can not run stock 225/70/14 tires on the front of my truck w/o rubbing.
I was told to let my coils settle for 6-8 weeks since my truck was driving fairly straight.
There are a lot of opinions on the best way to drop these trucks. These opinions are based on personal experience from generally one truck. Each persons opinion is different on what is "OK" for ride quality. If you want to have a truck that can be aligned for sure, buy the aftermarket eccentrics and then beams and/or coils. If that is not low enough for you, plan on taking chances for ride quality and alignment specs.
My truck has 3" beams and 2" coils up front and 6" drop leaves out back. I have helwig sway bars front and rear. I am running KYB MonoMax stock length shocks up front and Toxic shocks the proper length in the rear. I have also cut my bump stops in 1/2 and I do not have a c-notch in the frame. To me, the truck rides stiff but not uncomfortable. To most others, its a very stiff ride around town and bumps are harsh. The highway ride is surprisingly smooth for most people but you do feel the expansion joints. It handles very well through the turns and will surprise most people. I feel more secure pushing limits in my truck then I do in my wife's 2005 Subaru Outback.
It's your truck, build it safely and correctly. If you do, you'll enjoy years of driving it.
James