Looks great, love the Mcwalnut. My 264 win mag has a Mcwoody on it.Anti will be a touch lighter 3b will be a little heavier, edge will be a little lighter. Probably be close to the same in the end depending on bbl length. Mine balances right on the front edge of the bottom metal, yours will likely be a touch forward of that unless you have some weight in the back somehow.
Most important item for the shooter is the stock. The new Manners LRH is about the most ideal hunting/cross-over stock out there. I would have them set back the action about 1/4" - 1/2" from their typical mold.
My last several Manners were purchased through Altus, so I haven't interacted with Manners directly for a few years, but I know they used to set back actions upon request. I also used to find a ready-to-ship stock and have them add a mini-chassis, re-inlet barrel channel, add accessories, etc., but they won't go to that extent anymore. So things could have changed.Ive never heard of them setting the action back.. that’s a thing?
A locking bolt? As in locked down when in battery? Most actions don’t have this feature but some do if you apply the saftey( Old M700, M70 and a few others. I don’t think defiance does unless you got with the 3 position saftey.So I have a few deal breakers depending on the application. I believe you said back country. If the gun is going to be put on a pack and you are going to be climbing mountains then a locking bolt is a must have. That is a deal breaker for me. I had a bold come out of a gun one time that rendered my gun worthless. The only custom action I know of that has a locking bolt is the Defiance (I could be really wrong on this). Tikkas come with a locking action too but I'm sure you aren't looking to "accurize" a gun. So a locking action is a must have for me with a back country gun. For sitting blinds and normal hunting it isn't a bid deal. Being back in with a gun that doesn't go bang is not a great experience.
Shorter barrel. I have a 22" #3 stainless steel brux barrel on my gun. It is a great length and I can get plenty of speed and accuracy. a 26" barrel is a PITA if you put it on a pack.
A "nice to have" is a magazine. Not a requirement but it sure is nice to have.