Questions about my 1979 2wd blazer.

[BIG_J]

I have a 1979 2wd k-5 blazer that i want to lower an make into a hot rod. I am wondering what company makes drop spindles and if i would need to get new shocks and if so what kind. I am planning on doing 4 inch lowering on the front and 2 on the back and putting 18-19" chrome wheels with low profile tires on them, would the 4 inch lowering be to much for them?.Also i was wondering if a door off of any full size 79 Chevy truck would fit on my blazer, thanks,John.