It is a big change between your initial list and the updated one in terms of barrel, action, bipod and scope. I am guessing you have a set amount of budget for the build, if you spend more on barrel/action etc, you may have to take the budget from other parts of the rifle, correct?
And you shoot factory ammo, right?
If your budget isn't relatively flexible without scope, I would recommend:
1.fix the action first, it will stay with you almost for life
2.after the action is decided, you would be able to pick the barrel, either chambered by gunsmith or buying prefit and install yourself
3.consider TriggerTech Diamond over Bix'n Andy Tac Sport Pro-X would save you cost of a muzzle brake
4.pick your reticle and the features you want before choose scope, reticle is very personal and it works for others doesn't mean it works for you. Make sure you understand everything on the reticle before you make any decision.
I wouldn't consider a middle tier scope in the $2000-2500 range unless you like the reticle or specific feature from that scope model, or you will keep it forever, not upgrade it later.
If you have a hard budget for scope to be under $2500, the Apex Rival or Meopta Optika6 5-30 are the two from my list
I normally recommend to others if you want something under $1800, the new DNT 7-35 is the one with unbeatable price and performance, it will be enough for you to up skills untill you are ready to jump to $4500+ price range scope and you still have some resale value, the only thing it lacks at it's price range is the coating comparing to $2500+ scopes especially at low light condition, but I guess you would least likely shoot in those conditions unless you use it for hunting as well.
The next price range would be $3000-4500, it's a wide range with many options depends on your preference. Zeiss LRP S3 6-36 is at $3### range, Vortex Gen 3 Razor 6-36 or Element Theos 6-36 both will end up over $4000 unless you can get discount.
When you are prepared to upgrade or add a new build in the future for an alpha glass $5000+, I would check the Zeiss LRP S5 5-25, ZCO 5-27, Nightforce Atacr 7-35.
When you don't care about your credit card balance, Schmdit Bender CMII High Performance 6-36 and Tangent Theta 5-25/7-35 as they would be around the $7000-8000 range.
I would be interested in comparing the Kahles's new K328i and K540i from behind first, as their predecessors the K624, K525 models having obvious chromatic aberration effect especially at a sunny day, if you don't mind or can't tell, they are pretty good scope too.
