Good to hear, Ben. It's actually the shipping minimum that seems to deter small orders, but it sounds like they let you save a bundle: I think they actually start at a minimum and go up by price. For the record, my lens arrived today, and it seems they billed me for a little less than that minimum, likely owing to me living so close. And it got here quickly for the same reason, despite me not paying extra for a rush, so I'm mollified somewhat on that count.
As for the lens itself, it came in beautiful shape: if it's not up to snuff, I suspect that's from the design of it, (Got me an older Sigma 28-105 2.8-4: think it's from film days, and of the basic grade, not a wonder of sharpness, but, darn is it a nice size and concept. Got to tide me over till a Tammie 28-75.) ...and nothing on them. Very happy with the purchase end.
I'm still wondering if anyone has a notion about the Mamiya lens in question: what it is is just an old 80 2.8, it's in lovely shape, but for lubrication-related problems. Since they're so common and inexpensive, I was considering just trading mine in rather than waiting on a repair. I suspect their service department could turn it over some slow day.
Thoughts?