Personally, from experience, I would not buy a complete Stan's wheelset. I LOVE his stuff, but boy do his wheels need a lot of truing. I have run an Arch with XTR hubs, no issues there.
As for the fork, I LOVE Niner carbon forks, and since I have moved to 29er's, I haven't found much need for suspension. On my Lynskey Helix Lefty, I have it locked out most of the time anyway... My buddy has a Seven Sola with a Niner fork, I borrow that whenever I can!