i want to put an 80's model truck body on a 71 blazer

I have a 71 blazer with a very rough body and hard top leaks often plus i live in iowa and I cant seal up the top at all around the windows for winter.the body is too bad for me to tackle on my own. there are huge dents and there are also places were it has bondo between 1/4 and 1/2 inch thick from the previous owner.I have the chance to buy a rust free 80 model 2 wheel drive v6 full size truck for 500. I was wondering what it would take to put the truck cab and front end on the 71 blazer frame.