Right now its an assembly line process, sticking done parts together, and sometimes not that well. What we are looking at here requires a well equiped shop, reamers and SKILLED workers who wont mess up the chamber (next to the actual bore, the most critical part of the barrel). Just because they, apparently, can make money on these, as is, selling them as cheaply as they do doesnt mean that this C.S. concept would do anything more than break even. Not a good business model, that.
What might work, however, would be a private enterprise with a supply agreement for unchambered barrels or barreled actions. H&R would not have a stake in the profitability and possibly could be convinced to help make it work on that basis.
Im not sure, but wasnt the old Fox Ridge (?) for custom TC stuff a 'separate', yet closely affiliated, entity from TC?