I understand what you're saying about the spacer between the mounting ears to keep from crushing. That occurred to me also after my last post. I can use the longer spacer from the Mancini kit and cut it down to fit.
As for the short spacer I inserted between the fore alternator ear and the bracket, I believe that it has to be there in order for this alternator to fit; it moves the alternator foreward far enough for it to fit without contacting the engine. If you look at the photo I posted, there appears to be a "correct" gap between the engine and the back of the alternator body with the spacer the way I have it.
Yes, there is a short spacer pressed into the aft ear of the alternator. It protrudes slightly, but doesn't fill the gap between the alternator and the cylinder head.
All of this is subject to correction if I've got it all wrong. I'm just saying that after beating my head (and my knuckles) on this for a couple of days, it seems that I've come up with something that works. Is is as Mopar intended??? I can't say. In my research of this, I've seen several different setups and uses of spacers, washers, bolts, etc., all/any of which could be "correct" depending on how well they work for the user.
Thanks for responding. That's what makes this hobby fun.