Master Cylinder and Handbrake on Trailer

We have a Prado and tow a Kimberly Kamper. We often find that when the camper is hitched to the vehicle, the master cylinder and the trailer handbrake handle prevent the rear door opening fully. If the vehicle and the camper are not aligned, either vertically or horizontally, it can be painful to access the rear of the car and the beer in the fridge!

I can can move the handbrake handle out of the way by cutting it off and re-weld it into a horizontal position. The problem of the door fouling on the master cylinder appears more problematic. BTW, I have already the hitch low rather than high and changing to a lower hitch will begin to mess with the trailers attitude and introduce ground clearance issues.

Has anyone else been confronted with a similar problem? Potentially any vehicle with a single swing rear door could be affected.

The only solution I can seem to think might work is to relocate the actual cylinder which holds the brake fluid to a remote location. A painful job, but provided that it remains at the same level or higher it should work? Anyone willing to comment? Perhaps someone has another option worth trying?

Gary