What it needs is some young smarty-brains to design and develop a home-made direct drive mount from bits in his shed, then post pics and info in Forums like this.
Then we all say "Build me one too please"
Actually the Belt-drive system available for the EQ6 mount is probably good enough and would cost a whole lot less!
It works well, with zero backlash.
But if they can get mount drives to 8.38 million steps within a reasonable price it would be lovely.