Just a heads up, if you do end up picking up a set of 391's, BayTaynt3d has a set of 93 caps that he's been trying to sell for a while...
I have no connection to the seller, just know that he's been selling them a while now and that if I had a set of 391's I'd probably be all over em... HYPERS!!!
And as for BayTaynt3d, I've never had any transactions with him, so I can't personally vouch for him, but I'm sure that there's plenty of folks around here that can... He's been around here for a quite while and always seems to be a stand-up guy...
Here's the link to his sale:
http://taperssection.com/index.php/topic,76915.0.html