I installed the base plate, Roadmaster invisibrake and light wiring myself in my toad. The base plate suggested about 2 hours, the brake system information said about 5 hours and he wiring was another couple hours.
It took me longer than that as I needed to read the directions several times, decide where to install the brake components, remove and replace several interior panels and ensure it works properly.
A qualified shop with this kind of experience should be quicker but will probably take at least a full day and then some time to test and adjust everything.
