You can solve the front wheel issue with locking wheel hubs that litterally disconnect the front wheels from the tranny by simply turning a switch on the hub. Inexpensive and simple to fit.
The rear is more problematic.
you could reverse it onto this and tow it backwards with the front wheels running freely
http://www.northerntool.com/images/p.../125760_lg.jpg
also look here
http://rv-roadtrips.thefuntimesguide..._behind_rv.php
http://auto.howstuffworks.com/auto-p...g-options3.htm