Most TB games I have the manuals to suggest either buttons on the left, or mirrored on both sides. I usually play TB right, buttons left, but some games I switch of if the buttons are mirrored as needed (cabal, dive right).
Spinners I'm even more switchable, but again it's usuall spinner right, buttons left (learned from back in the Atari 2600 days).
If you have room, I suggest three buttons left, TB middle, two (or three) buttons right. Spinner, I'd want 2 buttons left, spinner, 2 button right (I never tried Star Trek, so I don't know about button'ing for it).