Some good advice here. It seems like you have a little flexibility on time as you have other rifles to sell and hunt with. So, I would pick the action you like the most and identify a stock pattern for it by McMillan, Bansner, or Brown that you know fits you well and call a recommended smith and talk through barrel choices and weight goals and you're on your way to a rifle that fits you on an action you like.
I recently did a similar purge and build and had a 7mm RM built on a Model 70 Classic SS action in a Bansner stock and have a S&B Summit on top and love it.
Good luck!
