leaf to coil springs

[ggtsvnv]

HI all I posted this in the suspension section and have had no response so I thought I would try here being as you guys are in the spacific year that I am looking at. Ok here is the deal I have been looking for a 69 or 70 chevy 1/2 ton to restore for quite sometime ( the last one I had was stolen a few years ago and never recovered) and I found one that has my interest. It is a two owner 70 and the second owner has had it since it had about 6,000 miles on it. It has all the orginal paperwork, window sticker warranty card, owners manual ect. It has the 402 big block and is a CST/10 and a rebuilt turbo 400 ( the orgional). It runs very well but needs some body work but it is dents not rust. Now the one thing I don't like about the truck is it has rear leaf springs and the 8 lug rear end, I prefer the coil springs and 5 lug. Is it possiable to switch over the leaf to coils and how hard would it be? Thanks