I am not a fan of anything with any kind of coil spring. more geometry problems, not a link fan, since more ponts of failure, more welding then necessary, might be caster adjustability but can cause death wobble. (i look at the jeep theory).
(my experience with coils and opinion on it), i had my ball joints brake on my lifted 2wd dodge, and that coil spring wrecked alot of the truck (wheel took the knucle with it and coil shot out of the bucket into the fender, taking the upper control arm, bumper aswell) anyways, i could
im trying to keep it simple, and hopefuly use stock blazer or k10 springs (I can use upto around 4 inch total lift-state laws), I am also not using a Dana 60, i am hopefully using a 10 bolt, so itll keep lift needs down. I also plan on using fiberglass fenders (or fenders that have a large raise in them) to accommodate tires.
If its going to cost me $2k for a good lift, alignment, and what ever else (not including tires) im just going to go and spend $3-4k on a SAS with leaves. already told sky-manufacturing that I would help with measurments if needed for a prototype kit.
I am gunna continue to search for a kit that fits ( it will be bolt on first--and have some welds placed for extra strength)