I finally completed (to my satisfaction), my "NEW" Tidalforce M-750X electric bike with Avid BB7 front disc brakes and my modified battery water bottle mount. I should just call it my battery mount from now on. I bought the NOS (new old stock) bike frame from a former Tidalforce/Wavecrest Labs employee who was working for EMS when EMS shut down. He had these to sell so I bought a couple.
The bike feels very well balanced and not back heavy (as is the case with a rear rack mounted battery). It's nimble with the lower front wheel weight and lower center of gravity. As is the case with all Tidalforce bikes, it's extremely smooth and totally silent.
I am planning on putting this bike up on eBay shortly so keep your eyes open for it!