I won't go over some of the 'known' items that the OP mentioned, save one, the grips. I had them made by a guy over at CZFirearms forums. They are black layers of linen fabric in a phenolic resin.
The magic is in the trigger and the accuracy. With new CGW internals, 85C trigger and new stainless Ring hammer, the DA pull is a 7 lbs 13 ounces and the SA is a very sweet 3 lbs 13 ounces. SA reset is 2.5 mm. Barrel bushing is from Wilson Combat and the lockup is extremely tight, in a good way. Shot over 100 rounds last night with no hiccups using 230 ball and 230 HST defense from Federal. As far as accuracy, it exceeded my expectations. Granted, I'm not a NRA bullseye shooter nor do I handload for pistol, but at 15 yards from a standing two-handed position, if I did my part five shot groups were sub-three inches.
All in all, great feeling pistol. Had that great feel before sending off to CGW but now the trigger and barrel lockup put this black beauty in a different category.