Funny that Everyone starts talking about the same things at the same time.
I hit Rashid up this last weekend about the same thing, seeing if there were any working versions of the new 2020 Alta plastic that we could scan in the north bay on a micron precision scanner. Had no idea this thread was in existence, but knew of the older ones.
I have done some 3D scans of my friends kawasaki attempting to get the shape of a truly comfortable radiator guard, we came to the realization that the best way would be to scan the bike for its mounting locations as they are fixed and the plastics tend to flex or deform slightly when printing them.
We have been working in isolation on this issue, if someone has a comfortable faring and is good with the healing of scanned surfaces RE: Geomagic X or Some other freeware surface modeling program. Our issue is that we develop good scans, the healing is truly the missing link here.
Any small defect in the surface mesh makes it so the surface to solid transition is tooth pulling error filled process in Solidworks
If there was a fixture guide from one of the Alta peeps with a 3D sketch of those hole offsets (& frame rail, I wish), that would be remarkably useful.