Re: 7wsm rig
I'm thinkin I'm going to jump into one too.
I think most of it's preferance though, stock, action and barrel...
I'm going to make mine light as possible, a bit different than you're after I think.
I'm going to use an MPI thumbhole stock, a lightened 700 action or an aluminum type if one's available then, and possibly a carbon wrapped barrel, haven't decided on a scope just yet. I might try one of the new NXS's with the R2, 2.5-10x24.