I have a spare tire with a tube. I had a brand new 37" MTR that got a nasty gash in the middle of the tread, about 2" long. I did not want to junk the tire, so I searched around for someone to fix it. Nobody in a chain tire store would touch it, for liability reasons. I finally found a guy probably like fun fool, a real old school tire guy who owned his own shop. After assuring him it would only be a spare, and I would pay in cash and not want a receipt, he agreed to do a major patch job that involved grinding away some on the inside of the tire, then glueing on a patch. Then I had a tube pit in, for extra insurance.
It holds air for years now, but has never seen use, as I've never had a flat in that time.
Also, I had a car one time that got a hole in the sidewall, more like a cut. I couldn't afford a new tire right away, and again nobody would even look at a sidewall repair, so I took out my SafetySeal tire plug kit and started throwing plugs into the gap. After 3 or 4, it held air, and I drove it for months like that.
Smart? No. But I did it and lived. I ran it on the rear, thinking that's the better end of the car to have a blowout on at speed.
If you get this tire patched, either have it as your spare, or run it on the rear wheels only.