Have a motor for sale. Looks to be in good condition except the bracket for the gearbox is bent slightly. Certainly looks to be able to be bent back if you are handy or used for another project.
Located in San Diego. $750 obo shipped.
Just fwiw, my spare motor - new in (damaged) Furuno box - has the exact same bend. I've included your last pic with a straight line across the LH side of the motor end plate, I see a very slight upward angle on the RH plate side in addition to the bend (can any ex-Alta folks confirm if this plate should be pancake-flat across its full width?).
I was able to get in contact with the person I bought the motor from and do an exchange for a new motor that wasn't damaged. I will update with some more pictures later. This new motor is still up for sale and could act as a good spare for some one stocking spares for the future.
That looks like an engineering or development model motor. It's got the thermal winding potting (the OEM motors don't have this). I believe that same motor was referenced here on the AOF sometime back.
I'd be interested in the damaged motor if you can put me in contact with the source.