Agree tube it... Les Schwab for about $25 but yep you need a healthy patch on the inside first.Put a patch on first or the tube will try to come out the hole.
ditto with needing to place a patch on first on the inside of the tire. a larger patch, maybe even a little thicker might be wanted. and then tube tire. had a tire dry rot on me. and over a day the tube pushed out or should say ballon'ed out a few feet in diameter and finally popp'ed. the larger patch = help hold the patch in with tube, and thicker patch = help keep something coming through and puncturing tube at later time.
Not poking fun at you Boggen, but darn, just reading about the slow growth of a tire tube to a giant ballon and its sudden demise brought me to tears laughing. I guess I watched too many cartoons as a kid