99% of that is completely unnecessary, all you need is an Eagle 6 M100 / M95 spring, or a prometheus spring guide and a tightbore barrel.
Siegetek gears are arguably the best gears available for a DMR build as they're really hard, they've also got a massive ratio which is great for pulling big springs. What they'll do in your gun though is slow the trigger response down and require a couple of hours reshimming.
If you're not upgrading the spring, there's no point upgrading ANY part of the drive train, looks to me like you went onto Eagle6 and just picked the most expensive parts.