Too Old -
I had a TRS on my Baja - bought a prop from a buddy - off a Bravo. It wouldn't fit on the prop shaft. The prop shaft on my TRS had a "flair" all the way up where it seated and the Bravo prop would not seat. This was my experience, but I don't know if something was changed before I bought the boat.
I had trouble finding parts for the drive - but maybe now more sources are available - or at least advertising better.

The trs sometimes reqires a different spacer in front of the prop. that may have been your trouble.

Wellcraft excalibur cat. Almost all came with 400 Cyclones and Kaama drives. Not sure if the TRSs are original, but they are a lot easier to find parts for as compared to a Kaama.
Very heavy single step cat. Dont expect speeds over 70 with 454s and TRS.
The hulls are solid, no coring. Although the stringers are integrated into the hull sides and tunnel. Not sure if this is better or worse when it comes to rot (frequent problem on old wellcrafts).
Fuel tank is between the engines, not under the floor. That makes the wweight distribution a little odd when full vs. empty.
Gary