go tas engine reco as they get good parts for cheap as prices and have many years of experience over 20 years..
my mate got his engine rebulit with s15 crank +_ bearings and head gasket etc for $800 from tas engine reco ...where another well known company with a big repuation from heaps of ppl that i wont say quoted 5-6k,,,,
they got him parts heaps cheaper then on the net ie multi layered metal head gasket for sr20det $140...
Speak to the ppl that have been doin it for years and know their sh*t not a bunch of blokes with a few tools in their hand that think they are the shi*t cauz a few ppl rave on a bout them