I've regularly bought from bezdez before ... good ebay vendor, great store, great prices.
As for the bach trem ... I haven't been playing the bantam I bought. Not a big fan of the electronics and pickups, or the action on it. Its crying for a rebuild, but I still got two other basses on my bench.
What I can report ....
The trem, at least on this bass, stays in tune.
If you like the hipshot or guitar equivalent floyd rose design, you'll like this trem. Even moreso for $90!
I still like the kahler the best.
Good luck routing for this thing.