New to PRS, MPA Barreled Action, Custom, or something else?

Reck16

Private
Minuteman
Jul 31, 2023
1
0
North Carolina
Figuring out a build for intent to do PRS matches and learn the skill of long range shooting. Budget is pretty flexible, around 4-6k but would like a good ratio to reduce diminishing return and increase bang for buck.

6.5CM, 26 in MTU, preferably a 60-75 degree bolt, not particularly married to anything else.

With some Mil pro deals I could snag an Impact, TT diamond, and Proof pre-fit for 2150ish.

But an MPA Barreled Action w/ TT Diamond could be had for 1650ish, post discount

I have a buy once, cry once mentality on this sort of stuff. I don't want to waste money with a "beginner rifle" I'll eventually lose a bunch of value on. Any thoughts, better options? If you could do it over again, what would you do?

I appreciate any feedback.