Some days things fall into place. Several years ago, I retired a rear rim because it was getting soooo thin from brake wear, I was afraid it would break. This saturday, I filled it up with air to see what it would look like on the bike, and KAPOWWWW!!!!!
Fortunately, I saw it coming, and had previously ordered a NEW rear rim, which showed up several hours later:

Not missing a beat, I got to rebuilding it- never mind It was a 36 hole rear rim, and I had a 32 hole hub, but that's a different story.
Ultimately, I am restoring my 1985 Schwinn MTB, It's taken me to some cool places, and will get a complete restoration- here it is in some sand at Hilton Head SC.