Have you considered other options? look at the entire engine spectrum. Not just 22RE's...
3RZ, 5MG, 7MG
what about a newer 3.4L? those are an excellent engine.
Why are you so anti- 4.3? I know some of you guys are total zealots when it comes to keeping it all Toyota, but why discount a tried an true motor that has a TON of aftermarket support and is readily available?