"There were already a number of other shipsets for specific races in existence when AT created new versions of them..."
100% of such ST ship sets were just screen captures, half made by AT before he got into modeling, anyways.
So... do you actually want them to look like the crudely crafted models from TOS?
I think even the worst of the models I linked to were much more interesting than those.
"Oleg had a solid textred version of the set. but no oleg for a very long time."
Just send him an email (in his profile). He'll respond.