I haven't tried fitting the wheels yet, so can't really comment on that problem.
You've got me worried though! Might be worth asking Spud.
There hasn't been too many photos from me lately as I haven't got much done lately
Progress wise I'm about the same point you are in the build - fitting the ali panels, so I suspect you're just about to overtake me, if you haven't already!
Have you tried asking a Mazda dealer for the rubber washer things?