Ha! great idea! a nose cone /storage on the draw bar would help fix the C of G issues.
I have thought (= fantasised) about something similar except using the existing EAS on a later model and hitch it to my P38 so that trailer would respond to changes in sync with the tow vehicle;)...
other random thought FWIW
there's kit available to electrically activate the existing hydraulic brakes ...use a small master cylinder and pump and accumulator -all fixed to trailer. Electric brake controller activates the accumulator which pressurises the master cylinder . Pump can be powered from deep cell battery in trailer which is charged from tow vehicle. Can you salvage existing power brake parts for this?
As for fuel supply, maybe could use switch over valve and activate fuel pump in trailer to feed tow vehicle through high pressure flexible coupling. Existing gauge and sender should work as well. Could also use existing carbon canister for fuel evap.
I'll watch with interest!
good luck with it:)

