I built a replacement one piece door. I didn't change the geometry of the ram or pivot rod that the bifold door actuated with, just the locations of the air lines like you mentioned.
It was a fair amount of work, I built a custom hidden hinge and some other bits. Check the broccoli bus build some pages back for details. It uses an automotive style bearclaw latch to hold the door closed and lock, with pneumatic piston to unlatch the door (or just a handle for manual operation)
I've replaced the manual door open/close valve with a solenoid one so it can all be opened, closed, locked and unlocked from a keyfob, or switch to manual non powered operation like a normal rv door.
Originally Posted by ntrain6942
I'm looking at replacing the bi fold air door on my bus, but I would like to keep the air actuator/piston assembly intact and just relocate it further towards the door and reverse the lines so the original "close" position is now open and vice versa. Are there any decent replacement doors out there or would I best off just fabbing it up. And where can I get a good solid rv lock/handle assembly? Tips and links appreciated.