the gti-r is more expensive to repair than a bluebird, or avenir though. since every part is different, and it shares very few, if any part with any other sr20det.

if you dont want to it to be the fastest, but the most reliable, and easy to get parts in america.. i would reccomend a newer bluebird (u13) or avenir.
they make real similar power, but the avenir has a faster spinning turbo, so less turbo lag. and it shares alot of parts with the newer roller rocker sr20de.
the bluebird motors share most parts with a highport sr20de.