My two cents:
This guy was hoping you were a sucker. 40K is hardly enough to buy one new van, let alone three. Wrapping them will cost a few thousand a piece. Filling them with tools for a crew of two would likely cost 5K plus, per van. And if you power wash, double that.
Then you have to find work for all those guys. Probably 5-10K a month in advertising.
All this, for the bargain basement price of 40%. I would have needed about 10 seconds to tell this guy “No thank you”.
Not to mention when you grow to that size, you are going to be marketing to a different audience and you won’t be likely making anymore of that 200 an hour. You have a crew(s) to keep busy. You now would have much higher liability insurance expenses, and all the expenses that come with having employees.
The infusion of cash wasn’t nearly big enough. Especially for 40%.