When loaded for travel the two Honda's ride on a plywood platform on wheels along with up to 2 20pound LP tanks at the front of the truck bed under the tonneau. Here's a pic (I chain and lock them in and have covers when they are not posing for pics):
To run the generators I roll them, platform and all to the tailgate and fire them up. In the rain I open the tailgate but leave them under the rear panel of the tonneau. The exhausts on the generators face rear to enable that mode of operation.
Here they are on the ground during a test. You can see the tee sitting across the top of the generators. The red 3/8" feed hoses came with the kits. The black hose is a stock Camco item connected to the trailer and the tee. The black wires are the Honda parallel kit. There is a 30 amp twist lock to 30 amp rv plug adapter in the companion unit and my standard furion 30 amp umbilical plugged into that:
Here's a close up of the Camco lp house and the tee:
I have a post somewhere in a prior thread with specifics on the tee. Let me know if you need anything that detailed
To all: Apologies for hijacking this thread!