Product review (3 stars): Wrong screws for mounting plate to drum.  Do a fit-test before going on-site!
Well, I managed to force it in but it's clear that the 3 screws supplied for attaching plate to main drum were not correct.  Perhaps this is a one-off mistake because I don't see anybody else mentioning it.  I didn't have time to find correct screws so had to force them in to get the machine back in service.  So, the dryer is working which is nice, but the process was a good bit more frustrating than it needed to be.