Impossible? Looking for '04 Desert Runner OEM Tire

I picked up a nail in the SIDE of one of my tires (BF Goodrich Long Trail T/A 265/70-15). My 2004 Desert Runner only has 20,000 miles on it and the tires have at least 60% tread left. :censor:

In the perfect world, I would like to find another OEM tire ~ even if it was new. Apparently my 15" tire has been discontinued and BF Goodrich now sells the Long Trail Touring. The truck uses a full size spare ~ does anyone have a line on a full size 02-04 spare tire & wheel or just the exact tire (new or used)? I hate to buy a set of four new tires or buy one oddball tire that is a different model or brand. I'm in California.

Thanks!