I cannot answer all of your questions but I will try some of them.
I have all Blue Ox equipment and I have been very pleased with everything. I have the tow bar and the car shield and the base plate for 2 vehicles. When I had the Jeep wired, they ran a separate set of wires for the lights so they did not have to tap into the existing wiring.
You may want to make sure that your driveway does not have very steep angles. You want to check to see if you will scrape something. My biggest issue is with the levelers. I have to fill in the area where the side walk slants to the road to get the coach out of the garage.