Go with a TKO 5 or a tremec 6 spd. I wouldn’t buy a passion product he doesn’t stand by it. Passon doesn’t build these A855 or warranty his transmissions without threat of lawsuit.
For my T-56 swap on my 69 Dart original automatic I plan to use the silver sport pedals. The original pedals work there is a few threads about them just gotta modify it for the hydraulic clutch. I usually see original pedals go used here around 200$