best hydro trans for jdm b16a and where to get it

So right now I have a bad 99/00 civic si trans. I’m looking to get a new (used of course) tranny. I have been looking for a jdm one since the only option here in the US is the 99/00 and most of them will have lots of miles. I have been told not to get a gsr because the longer gear suck on the b16. The reason I went hydro w/hasport cable to hydro conversion is cuz I was having a hell of a time finding synchros for the cable so I gave up and went hydro. I want to buy from a company so there may be some sort of “warranty”. I’ve googled and can’t find anywhere that has them in stock. I’m wanting to be around $800. Thanks!