I have two concerns with the document:
First is remove of equipment already installed due to lack of payment. It is illegal to do so and I am not sure if you can force the owner to wave his rights.
The noncompete clause also has me a bit concerned, I am not really sure about that one though.
But, I am not a lawyer and I don't think anyone else here is. Spending a couple hundred bucks on forms you will use for years doesn't seem like a huge expense to me.