I found some cheap roller regrinds online. That being said, I don't know if I want to spend the $ to swap a cam and springs. I might just degree what I have and invest in some gears. I want this build to be more pedestrian anyway. A smooth idle with good gears and a screaming TQ sounds ok to me.
Hydraulic Roller Camshaft Mopar LA HR-270-SBMs 318 340 360 Swinger Demon Dart | eBay
Hydraulic Roller Camshaft Mopar LA HR-276-SBMs 318 340 360 Swinger Demon Dart | eBay
Hydraulic Roller Camshaft Mopar LA HR-279-SBMs 318 340 360 Swinger | eBay