I know a guy selling a SR20DET
He said $1500 OBO
He said it has an estimate 50k-60k miles
He said its in pretty good condition new valve cover gasket new sparkplug seals comes with an alternator and starter.
He also has a 5 speed tranny for an SR but thats going to cost extra.
PM if you want his number
He lives out by the deep western burbs (couple miles west of St. Charles)