@charles007100 That's a bridge I had to cross too although I came in with the Rivals in mind. 40 years ago I ordered the Klipsch Belles which were slotted between the Khorns and the Lascalas. They were less expensive than the Khorns but had similar drivers so it was the logical decision at the time. While I loved the Belles I always second guessed myself for not spending the extra cash to go with the Khorns. I didn't want to make the same mistake again.
The Lucera's are super nice (his newest design) and just a cut below the performance of the Rivals, but may be a better fit for your room. Look at it this way, you can always trade up if your curiosity gets the better of you. Sounds like that is what the person did with the used pair. If you like the Tineo veneer, go for it.
Here are my speakers in Greg's room prior to me picking them up.
https://www.instagram.com/p/C-F2SCbREss/
I wanted the Type 1 design where the veneer is on the front with no grill cover. These are in a funky Red Gum that I hand selected.
Call Greg and go listen to them.
Cheers!