Finding good people to do the work you can't. How do you know they are good?
Given you are happy with that. Maybe you asked Chip to do it.
When Chip says this isn't going to work, are you going to trust him?
Are you going to walk back to the client and say this can't be done based on his say so.
Can you afford to do that?
Chip's a businessman, he isn't going to work at a loss without a good payoff, and he's going to have to trust you to believe that. Can you convince him?

He isn't going to work on your complete lemon of a project and give himself a bad rep. Can you despite the fact that its' lemon shaped, lemon coloured and tastes exactky like a lemon, convince him it's really a tomato?
So do you go somewhere else to get an answer you like more.
There are plenty about who will take you to the cleaners, and leave you responsible because you didn't know what you are doing.
They got paid, by you.
My advice, sell yourself to someone like Chip, until you learn the ropes. Think in partnership instead of in charge.