It's the national rifle league comp in may. I'm not into comps but I think I could learn a bunch with a dedicated LR platform that could be applied to hunting yotes.
If you're referring to the JC Steel Challenge in May, you'll shoot 80 rounds a day. Not 200. I will be shooting that match with an 18lb 6mm rifle, for what its worth. There isn't much "endurance" needed, other than keeping your head together for a weekend of competition.
1400 yards, sub 8lbs, 1/2 moa and less than $1000? You're searching for a unicorn. If you find it, capture it and keep it alive and hydrated. I would like to study it.