LOL! Sounds like you have quite the challenge ahead. I can relate though, I am in the process of installing pneumatic retractable landing gear in a 48" wing span WWII P-38 Lightning. Just the mounting alone is a nightmare and I don't even want to think about plumbing the plane.
lol really ? i work in aerospace as well.. not maintenance but aircraft construction ..bombardier rj-200 and challenger 604... and i did help a couple of times to install the hydraulics on landing gears... not always fun and really shitty at time lol... so i can relate to what your going thru.... mark