I own a Vanquish, and it's one of those couldn't pry from my hands, etc.
The differences are pretty straightforward.
Vanquish is magnesium body and spool, CI4+ rotor, hard-anodized alloy drive, titanium bail.
Twin Power is aluminum body, spool and rotor, everything else the same as Vanquish.
Stella is magnesium body, spool and rotor, and stainless steel drive.
Vanquish remains the lowest-inertia reel ever made, and it's shocking next to any other Shimano reel.
There is no resistance whatsoever to start, and the reel doesn't try to push you when you stop - zero, zilch.
Even buttery smooth Stradic, you feel the inertia at each end.
Stella was the new round of reels that came out in '18, Vanquish and Stradic in '19, and Twin Power in '20.
The parts interchange between all these reels.
Here's the Vanquish JDM model list - I don't believe Twin Power comes in all the small sizes, but Stella models will be identical: https://www.jpfishingtacklenews.com/shi ... uish-2019/
Note the spool capacities and gear ratios are listed.
C2000SHG is the drive ratio you are looking for.
Don't trust Ali for these Japan bench-made reels.
You want to check Asian Portal, Digitaka, or order through Plat
. Also probably Rakuten, but some of their shops require a shipping broker. There's another choice, if you don't mind paying his brokerage fee, have Masamichi at noppin.com find it for you.