Given oil restrictor, means you'll be pulling apart that's kinda pointless.
Same for diff/trans coolers, external drains etc. You really don't need 3/4 the stuff you've listed. Just look @ all the basic builds - or better yet start going to track days and asking people. You'll find just how little mods they had (when starting out) compared to your list.
Just look @ Snowman for an example when he started out on a stock motor as a few others with similar set-ups.
Oil Cooler, Brake ducts, stock sump, semi comps. Thats it. Not sure about radiator, but they are cheap & basic install so why not.
More important is brakes and suspension.
Lasted what, 3 years of solid circuit work @ 330rwkw before it needed rebuilding. About as good as you can expect for 10-15yo motors that then see constant high RPM IMO.