98 vortec 350 swap

[72shortbed12]

I picked up a 98 vortec 350 with 70k miles for $400. It sat for a couple years so the guy tore it down to put new gaskets and seals in. He's getting divorced and had to sell his unfinished projects. It came with everything for the motor plus radiator, computer and wiring harness. Thinking about putting it in my 72 k10 but don't have a bunch of money to throw at it. I've searched on the forum and elsewhere but can't find much info on running my sm465/205 trans, t-case behind it. What am I looking at needing to find for parts? I know the fuel tank, pump and lines are a must. Do I need a different bell housing? Do I have to switch to a hydraulic clutch? Motor mounts? Speedometer? Can I expect a mileage increase over a carb'd motor? If it is expensive I'll just sell it to a friend who wants one for his 93 blazer. Its not a big deal to me. thanks