I'm thinkin that you're right fatcaaat. Pretty sure that all 4 mount points... CT70 mount points...have marks as if this engine was installed in a frame. I'm not sure if they show in the pics.
I didn't pay attention to the extra mount, to see if it's marked up.
But it does seem odd to me that whoever built this engine, built it as if it would be going into a ACTUAL nice110 scooter. They didn't remove the xtra mount...and they installed the gear indicator wiring.
This new engine will be stored for now...no plan for it currently. Maybe someone else will have some info to add.
I have this other engine that I bought used, about a year ago. It was built by Bob, and has around 1500 miles on it. I dug it out last night for a look...
It has some blue markings on it too.