I installed the large bear claws in my 50, they work great and were a piece of cake to install.
Just have to offset the mounting plate on the door about a 1\2" so the latch clears the run channel. Hooked up the solenoids and remote. "POP" open they come.
Also added a linear actuator to the cowl vent and wired it to the remote control with limit switches, push the button and it goes up and stops, push another button and it goes down and stops.
Anyway large will work.