Mack Brothers makes some superb suppressors and in 2018 the rolled out the Titanium Evo action for $1250. Great price for a custom Ti action not to mention a lot of good feedback as well.
Shot show they showed off their Stainless Steel Evo for a whopping $575!!! Unbelievable value if you ask me! Why even think about building on a 700 anymore?!? They just started taking preorders... I’m thinking 6mm Creed or 6.5 SAUM 
They’re gonna sell a pile of them!
https://macbros.com/product-category/act/
