Would you be interested in a 7 saum barrel without the barrel extension? I use 1 extension for 3 barrels. I have a 24" Hawk Hill Custom 8.3 twist marksman contour threaded 5/8x24 with about 75rds on the barrel.
I'd like to get $600 from it since it's a low round count. I'd also consider selling the other 2 barrels (28" and 22.5" 6mm Creedmoor)with the extension for $1400 for all 3. I just use a barrel vise and an extension wrench to swap.