A turbo Slant sounds good on paper but fabbing up an efficient exhaust that actually makes the turbo do what it's supposed to will take cubic dollars. There's really no fabrication involved in putting a 360 in, it's essentially a bolt-in deal with a nominal amount of parts.
Question is can the OP do this stuff himself? If he's asking these type of questions, probably not. At minimum, you'd need a decent welder or someone who has the skills and understanding to do the work for you. Not cheap! Money better spent on horsepower, not horsepower potential.
You could probably buy a running 360 for a few hundred bucks. I bought a short block for $75 once. Sold some stuff off it I didn't need and basically recouped my investment.
An efficient turbo Slant will take way more knowledge/expertise than just bolting in a small block. The 360 could be done in an afternoon with basic tools. Slants are indeed good candidates for a turbo but is it worth the hassle? Probably not.
