Well, okay. I didn't do what I said I was going to do. I ended up buying an Industar 61 L/D. At $23 shipped for one in (reportedly) clean condition, it was too hard to pass up.
I still plan to buy a Canon 50/f1.8, and probably something else in a 35, and in an 85 or a 90. That's down the road, though.
I think I may use the money I saved by getting an Industar to get Mark Hama to do a CLA on the P body (Peabody?)