I started off with a site called
www.speed-junkies.co.uk back in the day/ I still have the Url but the site is offline now.
The Fj s12's are getting rare as are they all. 30psi had one and said it was good to drive, Personally i like haveing a turboed engine as it is simpler to tune to a competitive power on a low budget. Unless i was planning turboeing the Fj or putting it on throttle bodies/twin 45s i would always go for the 1.8 turbo engine.
Good luck finding one. they do turn up regularly.Check Ebay or s12oc classifieds regularly and you should get in luck.
Would you be interested in s12oc events next year?
Jon