I have a client that wanted the direct drive STST Motus IIDQ { smart man :)} which I represent however he already had a 4pt14 which is a whopping ~ 2kg. We went with the unsuspended Motus DQ as a result. Sounds fantastic. Anyway that’s why it crossed my mind for you to check compatibility...
If you are set on another belt drive I think @dover gave an excellent suggestion.
Do want to have ’a different flavor’ with your second table or just ’ better ’ or?