Thanks for the quick replies, everyone! W/r/t sidedness, these bindings aren't labeled so I wasn't sure which went to which, though neither boot fit in either side. I've since learned that the ski leash goes on the outside, so in my photo they are indeed switched. I also found this thread on Chouina...

Edit/Update: I managed to get the left boot into the binding with nothing more than adjusted foot angles and some cursing, and I only had to take 1-2 mm off the outsole of the right boot (not even the duckbill, but further back around the ball of the foot). I waxed them up with a $2 clothing iron fr...