So if you didn't get the 360 and found a $400 340 + $150 sleeve you would only have $2000 or less into it. Still under $3000. Your resale would be much more higher for it as well.
Resale is another whole subject. 340 has the market, which is why the 318 can be competition on a 3k budget.
400 include crank, rods, pistons and all?? Just say'n, I could find a 440 6 pack at a barn sell for 50 bucks. We all know those great deals do come up now and then, but it's not fair market value.