That MN86 is an impressive and imposing scope. I didn't realize they were so heavy. That's the same weight as a C14, and it's interesting to see it on what looks like an AP1200 (maybe 1100?).
Are those rotatable rings?
I see many MN users have their scopes on alt-az configurations which would bypass the eyepiece positioning issue, except for altitude. And some appear configured for photography where it doesn't matter.
I have entertained the idea of buying a mak newt and putting it on a dob mount, since they can be somewhat heavy for their aperture. A good dob mount is not only sturdy, it usually is inexpensive.