Don't forget the cost of head gasket set and the labor for installing them. That's a lot of work. I didn't see any high compression pistons for an NA setup in there, and those are going to run you $400-$500.

If you could be happy with 8 PSI, and my bet is that you would be, you can price a turbo kit for stock internals and put something together for under what you have for your budget.