It is time you did something positive that you know will work as the amount of time you are spending is getting silly. I would either make and fit a device to stop the compression at the front end (like we all had in the old days) and just use this for your drive or convert the hubs to knott brakes, failing this buy a new axle that has knott brakes.
I just towed mine 700 miles round trip and all work as designed
Dennis