Looks like a straight forward, effective design. Nice clean job! It's a shame when people simply change their mind when others go through the time, effort & expense to help them. I think they should have kept it, paid you, thanked you, and gone their different route afterward.
Thoughts entering one's mind need not exit one's mouth!
As I age my memory fades .... and that's a load off my mind!
"We Live In The Land Of The Free, Only Because Of The Brave"
“The problems we face today are there because the people who work for a living are outnumbered by those who vote for a living."
"Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery." Winston Churchill