I know this doesn't directly pertain to your thread (and its a couple years too late) But, the title was right for it.
There is oversized vehicle parking on the Strip just East of Ballys Casino. My wife and I stayed there this past weekend and it cost $25 for one night. Plenty of open spaces and lots of room to move around for a large vehicle. A good alternative for anyone that wants to do the Strip for a night and doesn't want to spend $$$ on a hotel.
The access was from Flamingo Rd heading East and I have attached a pic with an "X marks the spot".