Damn pesky axles !!!!

I see the problem now... BUT, there's still a possibility...

If I can replace the bolts (#1 in your diagram) with lower-profile bolts, I can get the wheels on... then it's just a matter of modifying the center-caps to protrude another 3/4" or so to fit the end of the hub.

I still think it's possible... and I haven't heard back from the dealer yet so it may be worth trying.

Thanks for the additional info, Joe. (And thanks again to everyone who helped me w/ this)