Not all turbo installs have to use a prepackaged "kit". Granted fab work is expensive sometimes but I assume a turbo setup can be complied for far less than $10k.
I've seen the black/green car out and about
Heres a good one I have wanted to do for a long time...
TDI + big turbo into a MkII. Some of the diesel guys are getting insane torque without much of a drop-off in fuel economy. And there are tons of IDI diesel MkII's out there, so you would already have the diesel tank and most of the gear you would need. Just swap in the newer TDI motor. Added bonus: no emissions

Also, only a handfull of folks (by handful I mean maybe 5 or 6) have done this swap, unlike the vr6 or 1.8t swaps.
