If you want to make it so that items can only be forged, and not BSed, then it sounds like "clan forging" is the only way to go - it would take a single person way too long to upgrade items when they get large enough.
The problem with clan forging as it is now is that you need to transfer the item permanently, so that the forgers can transfer it between themselves. Obviously, you would have to trust the forgers before you would send an item to them, so new forgers wouldn't get these kind of jobs.
I think a boost to Econ clans would be to allow transfers of loaned items between members - ideally the transfers would be free, or greatly discounted. In this way, econ clan members could share forge jobs in order to get the job done much faster, and the owner of the item doesn't have to worry about getting it back.
(Excuse me if this has been suggested before - I haven't read these threads....)