You need to build up on the street with ramping of some kind to bridge the rear wheels over the deep area where the pickup front tires are in that picture. Wood planking and blocking with a couple sheets of rough plywood on top is as good as anything if you have some where to store it at home. I’d be tempted to drop a few screws in to hold the top deck from “spitting out” toward the street as you back in. The front end should not bother because the ramp is there and the tires are close to the end of the vehicle.
Use a 2x4 and something to roll it on. Stick it out as high and long as the back overhang of the rv and tape measure how much lift you need and where on the street the tires have to start up the ramp...
You may only need enough inches of rear lift that an air lift system on the rv would be enough. Such a system would be handy cross small washes and stuff too...
But you have to discover the angle of the dangle first, with simple cheap means...
