I understand the reason for the Barnard and think it will work fine. The vais break would not be my first choice, but will work.
Out of the items you listed, the only one I think is really a bad choice is the stock. I tried a hunter BR stock early in my custom rifle
building and hated it. It is the worst of both worlds. Didnít feel good in the field as the 2.25" stock is cumbersome, but didnít ride my front bag as well as I'd hoped.
Get a tactical stock or something with a little beaver-tail. It will ride the bags well enough and feel much better in the field.