not sure if you've started - but for reference to others as well.

also mine's not 3 years, but 5 years plan coverage (comprehensive plan: unlimited trays, include scaling/polishing during treatment plan, can go back within 5 years also if i'm not diligent wearing retainers).

19k (18k after discount for paying upfront full) back in end nov/early dec 2022. my initial plan was 50 trays (10 days interval) and halfway through switched to current 36 trays (10 days interval) refinement plan. my clinic is diamond tier provider.

for besi that time was quoted 8k for self-ligating/damon, 9k for ceramics