Jamie is being very tight lipped about the design of his transmission so if I would guess its on the same shifter lever as reverse like a Nash or Richmond The Long shifter will not bolt in place of the Hurst type bolt pattern that I believe Jamie is using on his transmission. I do have a spare Long shifter plate for Nash/Richmond trannys if you need it for a pattern to fab your own plate for the Passon tranny.I purchased my tubing for linkage from Liberty's up in Taylor Mich.I Just used the 3/8" rod ends from Summit and other hardware from Long shifters.
It's alot of work but when you have it done and are pounding the crap out of your new tranny it's all worth it.
I also have LH and RH taps if you need them just drop me a PM
Gus