Craftsman Torque Wrench rebuild/recalibration

Well, my Craftsman torque wrench has stopped reliably tightening fasteners to pre-determined tightness. A tap on the head and a spritz of penetration oil got the pawls engaging again but there is nothing about the performance of the torque-setting part that separates it from using a breaker bar at this point, there's no setting low enough to get it to click on a bolt in my vise.

The Craftsman warranty is up, and while they talk about recalibration on their site, there's no information about it, and a phone call to their support number yielded no real guarantees. "I think we do that, let me find out if there's a place to ship it and uhhhh call you back" isn't exactly confindence inspiring. Now, I could take the thing apart myself and clean it up and lube it, but lacking any kind of calibration equipment it'd still be guesswork and I'd probably end up screwing up my head gaskets before I even get around the block. Anybody ever had a torque wrench restored? Who did it local/internet business? I think for this particular project I'm going to buy a new wrench but if I can get mine restored I'll go for a pointer style one in the short term, if not maybe I'll just go splash for a new nice one (and some fuggin' mothballs and WD for my tool chest drawers).

Any advice appreciated, thanks!