So I got a new set of tires for my truck earlier this year which was way overdue because of financial issues. It hasn't been a year yet and I found a a screw about an inch and a half from the sidewall which is on the outside row of tread which from what I read on the internet, is unrepairable. When I was driving to a job in yellowstone I had a flat and I took the tire in to get patched where the tire shop owner said if the tire wasn't patchable I would of had to buy 4 new tires because its a 4x4 truck.

These tires still have most of their tread and a new set of LT tires isn't easy affordable for me. What's my cheapest option to fix this that's not me plugging the tire myself?