I do patch and plug tires, as long as the puncture is small, round, and not near the sidewall. In fact, I’ve bought used tires twice from forum members in the same situation as you - nearly new tires with a minor puncture wound. I’ve installed a Stop N Go internal patch/plug, which I have full faith and confidence in, and ran the tire until the tread was worn out. The internal patch/plug device is both a plug that extends through the hole, and a patch glued to the inside surface of the tire.
If you don’t find a suitable solution to your tire problem, don’t discard it. I would probably buy the tire from you. You could bring it to KSL and save on shipping. I think we’ll both be there with trucks and trailers.
There are many riders who would never use a patched or plugged tire, and that’s fine, too. I believe in the patch/plug in certain situations, and I’m fine with a repaired tire.