From Fisherman

"Unfortunately (or fortunately) I was aware of this arrangment"

damn. wish you'd been unaware.Then the problem would be solved.

An earlier poster "Mccan" mentioned bending a standard wrench and then grinding off a little metal.
It would have seemed that a thinner wrench to start with; would have both made it easier to bend and also removed the need to grind it down.
Maybe flattening the better quality wrench is a better option based on your experience.

It's awfull when we start having nightmares about our cars.