I’ve owned white’s, wesco and JK. They’re all pretty solid but I don’t think you can get a better pair of hard use boots than the JKs. What QC issues are you worried about?
The Thing 2 might be worth considering as a base too. Seems like a lot of us want the same thing but can’t quite nail it down.
https://www.spiritussystems.com/the-thing-2/
You’ve made two threads about parts not being to “TDP specs.” Maybe rifle assembly isn’t for you. Bendy Bill might assemble it for you if you suck his dick a little harder.