2 mountainbikes and a dirt bike on the back of RV possible?

I have 2 mountain bikes and a Honda 700 on the back of my 2006 Holiday Rambler. I mounted the bikes on a ladder rack as high as possible( I put on the ladder rack standing on the motorcycle carrier) I also took the front tires off the bikes to allow enough clearance. The bikes don't touch the motorcycle. The only drawback is the motorcycle has to be off to use the bikes or accidents happen(don't stand on the motorcycle seat)