Derek Mark Edding wrote:

Would you try to work with this fellow ...

No.

He's already shown himself to be a poor salesman because he wouldn't
listen to his customer.

He's already shown himself to be a poor cost estimater because he's
changed his price twice.

This leads one to speculate that he is also a poor performer, and the
job he would do on your yard would not match the specifications and not
fulfill your expectations.

Daniel B. Martin