For liability reasons a shop won't repair a tire, but lots of guys I know have repaired tires that have lasted till the tire wore out. Not that I am advocating that you ride on a repaired tire, because if you do and suffer a calamity you will blame ME!
I am just reporting what has been reported to me.
You might take a large patch some good galvanizing glue and patch the inside of the tire. Then you will have a nice emergency tire.
Life is suffering until you realize that life is suffering.