Buy a Kimber Montana 8400, have a contour duped 6.5 PRC barrel threaded on, bolt on a titanium bolt handle and an aluminum trigger guard and you’d be damn close.
This is a 7mm SAUM 8400 set up as such, 24” tube. 6.5 would be a touch more due to smaller hole in the tube, but you could shave the contour a touch or reduce shank, trim barrel 1/4”, ect.. to make up the difference.
I’m not sure the weight change from 7mm to 6.5mm bore, probably negligible.
Could do it all for right around $2k if you get the donor for 1k or less.
Or, buy a Pierce shadow or Defiance AnTi and go from there. Probably be 2x the price that way.