If it was me I would already have a b18c5 in that bad boy.
But yes, if it was me I'd go with an engine swap of some sort, then with your old engine you'd have try and part it out or sell it as a whole for as much as you can get for it, which won't be much, that is why I say part it out. But use that money you get from parting it or selling it and put that money in with the 2 grand you already have left over after the engine swap and buy your self some sort of turbo kit. Thats what'd I'd do.