$5k will get you a bitchin MkIII, but you can get a nice one starting at $3500+ I'd say.
As far as 1JZ swap being easy...if you have a 89.5-92 and are ready to lengthen the harness (unless I'm pretty sure someone out there sells LHD 1JZ engine harnesses) then..sure.
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ASE: Brakes
Yea..that very well could have been the most retarded idea I've ever heard, but .. do it anyway. -TheShow50h