I’m no expert, but if it was me, I’d carefully try and remove Mylar with freeze method. Touch up as necessary and spray it yourself.
These cans are affordable and apply pretty easy. The results can be amazing and I think you would be happy you didn’t spent a bunch of money or time.
https://pinside.com/pinball/forum/topic/the-spraymax-2k-auto-clear-in-a-can-club