Yeah, I saw that plate on there and it looks like it's just there to get the recommended retract units (plastic mechanicals) flush with the bottom wing skin. They'll come out real easily but I wouldn't dare cut into the main mounts.
I still wonder, though, which retracts would have enough "swing" to get the wheel up next to the top inside skin like it's supposed to be. Bob Violet retracts have an over-the-center knee joint and have plenty of travel, plus they have adjuster cams available to fine tune the strut angle in the down position. They're very wide, though, and the air cylinder sits on the side of the retract unit (rather than the back). It would take some major modification of the existing mount to get them to fit and I really don't want to do that.
Robart's 530RS (90 degrees) units are only an inch tall but still too wide to fit between the rails. I guess a little trimming would be OK. I suppose that I could make an angled shim in case the wheel won't go into the well all the way.
I was hoping that someone would post that they've successfully done this already.

.Looks like the room is there, though, and I just have to figure it out for myself. When I do I'll post the details!
Thanks, guys-