Any info on a Doolittle trailer. 16', 7k utility/car hauler

[Illini22]

I put brakes on it yesterday, thankfully the axles had the flanges welded to it. After checking etrailer, I gave Rp carriages a call and they couldn't of been nicer. I'm only 20 minutes east of there location and was a le to drive there and pickup all the parts.