Thanks for your thoughts on the LTA and not surprised it sounds great. I’ve also got a full loom of AZ cables so we’re definitely on the same page there. I also have an LTA MZ2 pre (with upgraded LPS) and know what you mean about their stuff not sounding overly “tubey.” The positive traits are there but just doesn’t scream tubes, which is what I really like about it and exactly why I bought it.
Anyway, I forgot to mention another cheaper option that would be to get DDC to improve the performance of your Rotel rather than buying a whole new transport. I bought a used DDC to try it out and kept it because it produced very significant improvements. Here’s a Denafrips Hermes that I believe you can return if it doesn’t transform the performance of your Rotel — my guess is it would with its excellent OCXO clock. Just another option again FWIW.
https://tmraudio.com/components/d-a-converters/denafrips-hermes-ddc-d-d-converter-4/