TexHunt - did you end up going with the XLR HD chassis?
I've got a similar build in progress right now (1581 XL, Bartlein 28" Rem Varmnit/Sendero, X-Treme Shooting Mod 22 trigger, Vortex Razor Gen 2) and the only things not confirmed are the stock and the scope rings. I'm leaning towards the...