I wouldn't recommend using the RV jacks to raise the tow bar. You probably want to do that with a tongue jack of some sort.
Some RVs have a moveable rear view camera, but that's usually a high end option. If you're really trying to do this solo, I would get one of those portable camera systems. Or rig up a target on a pole that extends out where you can see it in the camera.
2008 King Aire 4562, Spartan K3(GT) w/ Cummins ISX, Motosat HD-SL5 w/ SWM-8, Multiswitch, HR34 Genie
2014 Jeep Grand Cherokee Overland 5.7L V8 Hemi w/ Blue Ox Aventa LX Tow Bar and baseplate, SMI Air Force One brake