Jack,
I reviewed your posts with interest since I have an old JD pull trailer that I want to make a vac system onto it with a framework like yours. I don't think I want oto get as elaborate as yours though.
I have a 18HP hydro Cub Cadet lawn tractor that will easily pull this setup, what I need is the vacuum unit and hoses to rig to the rear of the tractor then the trailer to this bit much like your pics show.
Did you buy the parts separate? I just need a vacuum system and about 30' of piping then fabricate from that point..
I have looked at Cyclone Rake, TracVac etc for this but they are running about $1200-1800 for a 40 CuFT unit.
I like what you have done and need to do something before the leaves fall soon.
Thanks
Carl