I'm gonna get myself in trouble, not be allowed to go to the junkyard anymore. Stopped in today, made a purchase, and found myself a set of mirrors for my truck, for $20. I didn't have that much cash on hand, so I'll be picking up the mirrors tomorrow. As for the purchase?
Online, they go for $12 each, plus shipping, which isn't cheap on a 20 pound can. Plus, mine came with a very good rubber seal, which many of the online ones don't have. It's completely rust free, the dark spots are where the red overspray has worn down to the OD paint underneath.
Total cost? $6.55. Yeah, some days you're the windshield.