The simple answer is you back it into the site or try and get a pull through site. Normally a short trailer behind a long vehicle is hard to back up, BUT because of the long overhang off the back of a MH it's a lot easier than you would think. Click on "How I tow" below as it's much the same as a short trailer and I back up often without unhitching.
*Here are some of my
posts on hauling a motorcycle on the MH as it's nice to have a car when it's raining. Putting it in the back of a medium size PU is another option.