#1 has a very nice can and aluminum front plate, but the label was destroyed (by a wraparound heat sink) so I replaced it with one from Ultrahive. #2 has a beat up and thread-repaired aluminum face (see my post on that here https://www.rc10talk.com/viewtopic.php?t=47321), but the original label is still in pretty good shape.
For end bells, I have one gold aluminum Kyosho original (with light marks), and one silver aluminum of unknown origin (somewhat tarnished). They look similar, though I'm pretty sure the silver one is not Kyosho (haven't seen one like that yet). I built up the gold end bell with original Kyosho brush holders and capacitors, and the silver end bell with replacement vintage parts I had in the parts box (unknown origin).
I put the gold end bell on the #2 thread-repaired, all-original can, and the silver end bell on the #1 can with Ultrahive label...
The #2 motor is obviously used, and somewhat beat up, but all original. The only real problem is the front face abuse from previous life. I usually like some wear for the "story" it tells, but that one is a little much for me. When mounted you can't see any of this though...
The #1 motor's Ultrahive label has a very nice bushed-metallic backing, however the gold color looks too saturated and feels off to me (I really do like the label otherwise, including the slight cosmetic differences that would make it easy to tell apart from an OG label). The motor can is very nice.
Am I being too picky about the #1 label color...??? Probably without them side-by-side the differences would be much less noticeable.
II'm undecided whether to keep them as built, or swap the gold end bell over to the #1 can given its nicer overall condition... I'm also not sure what I'm going to eventually do with these motors, which is part of my problem

Curious to hear what others think!
side by side (#2 on left, #1 on right):
#1
#2