Mine is 38 foot (Gassser) and there are many places where the park map says I won't fit.. Like the spot I'm sitting in as I type this (28 feet) turns out I have a 28 foot wheel base (Front to rear) so I'm good with a foot to spare on this site The back end is hanging a bit off the back end of the site.
I backed on part way. Dropped a 4x4 about a foot from the edge.. Backed till I felt the 4x4.. Pulled ahead about an inch and parked. Use a ladder to hook up the Ham Radio Long wire to the KAT-1 tuner on the rear (Well not on this site but a few I park on I've needed the ladder) Long way up to the connection.