I misunderstood your post - I thought you meant total cost of finished custom rifle, not just action.
As for ditching factory bolt/trigger/mag - if that is the case then you can get tikka stripped actions for $300.
If we have moved to problem solving for the next event, we should rope @WBouldin into rigging up an automated google forms thing to take some of the manual tracking out of it.
Years ago (early 80s) my dad and some buddies convinced an army recruiter to endlessly hound a 50 yo buddy of theirs as a willing 20yo enlistment candidate. Finally the buddy was so frustrated at all the calls and mail that he went in person and showed the recruiter his discharge papers after...
#protip - irritate your buddies by donating a dollar with their phone number & email info in the requisite form to a party/candidate they hate. It will generate years of good chuckles as they rant about all the unwanted texts/calls/emails from the evil doers on the other side.
If you are in a location that is essentially a single party state (like WY or HA) you probably aren’t relevant to the Robo spend. Way worse in swing areas.