"I have my eye on a Surgeon Scalpel like my .308."
If I had a Surgeon Scalpel in .308 and I wanted to explore the 6.5 world in the most economical way, I'd simply have them make me a .260 barrel for my current rifle.
I have a Surgeon with two bolts and two barrels. I had them cerakote the 5.56 bolt/barrel black and the .308 stuff in OD Green. I can change calibers with minimal or no tools.