Wow !!! That sounds VERY Light !!!! Even for a good sized (comfortable) trailer too ...
So the tubing ribs would just be bent, wood strips pop riveted (?) no couplers at all .... That's a big savings ...
Tent works store in a bag , just tow the frame , assemble at the campgrounds... very cool ... just like putting a Cozy over a toaster... No flapping problems rolling down the Hwy.
Guessing the tent itself would be Most of the work to fabricate properly... something best left to someone with suitable tent making experience , like you Schaney ...