I was wanting a bolt action Grendel for my son also but the only factory options are the CZ, Howa, and Ruger American. Unless there are more currently. I was wanting one with a flush magazine or hinged floor plate. Think factory Model 7 hinged floor plate, 16-20 inch barrel chambered in 6.5 Grendel.
For me the cost outweighed the benefits as I didn't want to use my Model 7 300BLK as a donor.
I ended up with a Rokslide special, Tikka T3x stainless 8 twist 223 cut down to 18" in a factory compact stock with a Leupold VX-R 2-7.