Welcome to the forum.
Good luck. Hopefully someone here will have something to help. In the meantime, maybe searching the online RV sales sites with what you do know about the trailer will turn up something.
Sherm & Terry w/rescues Steve (std Poodle) & Eydie (min Schnauzer)
2015 Jay Flight 27RLS (Camped: 102 nights 2015, 90 nights 2016)
2006 Ford F350 6.0 PSD, Lariat, 4WD, CC, LB, SRW, auto., Camper pkg.