So I have checked with johncalliesinc about roller lifter rebuilding.
They don't answer questions direct and refer you to their dealer list.
So I contacted the closest dealer to me Howards Cams.
The tech guy there got back with me right away.
He informed me that the only roller lifters they rebuild is the house brand MOREL!

So I am still looking for a rebuilder for the Comps and also thinking of switching brands for one that can be rebuilt.
Do the BAM lifters offer a rebuilding service?
Thanks!