I installed my system myself. I think I spent more time studying the brake lines and on where to install the big chunks in both the toad and RV, than I did installing it. At the time, I had wished SMI had a library for folks to upload there install location photos, that would help out a bit.
In the end, all I can say is that I love the system! Setup is far easier and quicker than the brake system I was using before! I also hooked the "activation led" line into the unused electric brake line in the RV electrical plug. I get the activation light on my dash and can see it out of the corner of my eye without having to look at the rear view camera.