For posterity, here is what I finally did. I got a couple of Trico wipers, one 28" beam-style wiper and one 11" bracket-stype wiper. The small bracket wiper doesn't block the wiper fluid as was reported by others on the forum. The slightly too-small passenger-side wiper leaves a small wedge of the windshield uncleared, but I don't foresee it being an issue.
The installation was trivial and they seem to fit well. No skipping or missed spots (other than what I note above)
I still haven't been able to find a 12" front wiper anywhere (only back wipers). Next time I'll see if a 13" wiper fits.