RE: Adding a V8
Get a Vett crate engine.. 5000$ lol...
But ya, You can get an nice v8 crate engine for around 1500$-3000$ + all your wires, drive shafts, heavy duty brakes, reinforce frame and maybe front/rear end, It will take alot of money and time and PATIENCE lol.. Because you just can't drop a V8 like that into a vehicle without doing some extra work.
Brother just droped a really nice 305 crate into his S10...and oh my god...hauls arse BIG TIME.. but yet..lots of money and time//
Just do some research on google, E-bay always helps with pricing and you may even find something decent there.