its a really hard decision isnt it.? my ideas change all the time and im glad i dont have to make a decision just yet on the cab.
i'm sure a G60 engine can be got within your price range.? one from a corrado would definately be best,? but your gonna have to keep an eye out as there not overly common.? ? 16v's are being broken all the time so it should be easy enough to find one of them but i think long term it may not be enough.
? if your gonna rebuild the cab you might as well do it to some extreme.? just seen a 1.8T engine for sale for ?850 here
http://www.edition38.com/board/viewtopic.php?t=2969only reason i dont want to 1.8t mine is because they seem to becoming rather common although speed, tunability definately make this engine a good choice
doing the work yourself will save a fair bit?