All I can do is wish you good luck. I haven't seen a travel trailer wiring diagram for probably 30 years and even then they were rare. Please let the rest of us know if you find a source.
__________________ Happy Camping! ///// Richard D.
2006 4x4 Ford 250 SD / 2007 Flagstaff 827 FLS
One very patient wife and one furry child who travels with us. Forty-two years of trailering and camping, and I still have a blast.