A body with an A833 and a Gear Vendor installed

OK I really didn't want to go here but after asking about the Passon OD trans and his Hemi OD gear set I decided to ask about a GV install in an A body with an A833. There seems to be a lot of negativity around the Passon products and questionable customer service. The 5 speed is out. The OD hemi gear set is kind of a maybe. So now the GV. I have a 71 Dart with bucket seats that I want to run 71 up B body bucket seat pistol grip on ( I already have the shifter). I know if the Big Block Dart mod to run an E body trans with said home made bracket. Is anyone out there doing that ( hopefully with a GV unit)? How's it working out? Pictures? Any advise on avoiding complications? Do you like it? Would like to only stick to the 4speed aspect not get into automatic stuff. Will most likely run 3.55 's but haven't really thought about what diameter tire yet. Probably 16" tires with a decent height sidewall but not there yet.