zdebx man - how much work did you put into your 1.8 huh? Why didn't you just buy one with leather seats? Why didn't you just buy one already on borbet's? Why didn't you buy one that was already lowered?
I'd engine swap my car over buying a gti now as it's MY car and i'd pretty much resent wasting the work that i've done - as meagre as it is.
Mate you wanna swap a new lump into it, crack on. Have a look to see what people have done and the different lump swaps you can do. Have a chat to find out how much work it is, because people are right it is a lot of work to do and obviously get your insurance quotes on it with a new lump mod and see if you can afford to run it.