tatonka wrote:
A few years ago i stupidly got in a tight spot where the way out was blocked and my wife and I were totally alone had to back our trailer out around several curves with inches of clearance between a wall and a sharp drop off, which took several hours.
It likely would have taken as long to unhitch and use the power trailer mover. backing out of a narrow passage is a time consuming process no matter how you slice it. Here's something to think about: assume in this scenario you decide that it's easier to unhitch and use the park assist to maneuver the trailer. What if the rig is on an incline, even a slight one? Do you chock the wheels before you disconnect? How would you simultaneously unchock the wheels and start the TT moving by remote control? My worst fear is not realizing that you're on an incline until you've unhitched.....a rolling trailer of any size would easily overpower the 12v motors, I think i would rather have the truck controlling the trailer until it was chocked and parked.
Josh, you would almost better off keeping one of these in the bed of the F-250:

(Click on image for link)
Costs $1025 and weighs 50 lbs, and will handle the tongue weight of the cargo trailer with oven. If you arrive at a spot where you can't park with the truck, just unhitch, pull this out of the bed, and park the trailer. Or maybe if you're already too deep in system you have contact these guys and see where they get their tires. Notice that the small casters on the back are off the ground when you are moving the TT, the weight is supported by the bigger tire. Google "trailer movers" and there's a bunch of options.