Schtupp!
Almost missed your post! Welcome back, Kotter.
Oh, I was, as I'm sure you know, only joshing... the trouble with trying to model from a Galoob MicroMachine StarTrek minature is that on many if not most, there is warpage in the plastic. It was a complaint that even Galoob (now Hasbro) noted on their website in those days.
The original TOS Enterprise was one of the worst ones, along with the Enterprise-D, and the one I don't have, but have seen, is by far I think the most warped one (no pun intended) was the limited release Enterprise-A. The K-D7 was pretty good, though.
I think even you might make a bad model if you used one of those as a template!
Still, I love owning the ones I have... nearly all, except for, what, maybe five to ten ships or less? Ah, to have those missing ones!