Lot of work yes, but how much rust? Curtis you can get completely rebuilt blazers in the 20k range so if it needs a lot of body panels I would keep looking. If it's clean (other then apart) then anywhere from 5-10k??
I had one years ago, my grandmother bought it new 69, it was the last one the dealer had so she had to take it with the plow!!

and yes she would plow her drive way with it!! By the time I got ahold of it not much was left.
I want one again real bad as a daily as well, just a stock 6.0 and an auto trans perfect!!
Let me know if you pass on this one?