Here's something local to me that I posted a while back, a middleweight (26 x 1 3/4 tire, infamous Schwinn size) like the Corvette I delivered papers on. This is a 3-speed with hand brakes, so maybe not exactly what you want. If you want a coaster-brake only and balloon-tire (26 x 2.125) only, let us know. The Schwinn American was built in both tire sizes.
https://richmond.craigslist.org/bik/6008975422.html