Your unit may have been marketed as a B+ but there is no such thing. They are a implementation of a Class C. Years ago some company designed a streamline motorhome using the build process of a class c. The main change was to remove the cab overhang and they wanted a method to differentiate it from other class c's. They chose B+ which is confusing since it actually a C- which would have been a marketing blunder.
What input do you want? Equalizer is a good company and Newmar uses their leveling systems. The cost of $3500 is inline with what I had to pay to get it on my new mh.
2016 Newmar Bay Star Sport 3004