Well, one of the core permaculture principles is to start slow and build from success. Another is to learn from careful observations, not just at the beginning, but at each stage of the process. So "doing the rest" as you say would be a commitment of 10 years or more, not a one-time installation deal. The company would basically have to come live on your property, which is cool if you're into that.
That said, I know people (including myself) are doing installations of sheet mulch or hugelkultur beds, or planting a tree guild here or there to get people started. But to be permaculture, it needs to be part of a larger plan that includes the client in residence at the center of the design as the caretaker to "do the rest," and that means education and training and buy-in to the plan even if the initial heavy lifting is done by a contractor.