Attempted using a local tube with no success. The inner diameter was a bit too large, the sidewall was a bit too short, and the stem wasn't quite at 90 degrees and rubbed the wheel. Ultimately the base of the stem "sucked" into the wheel, just like the current Cheng Shin tube I am trying to correct.

https://www.tractorsupply.com/tsc/product/traveller-lawn-and-garden-inner-tube-410-350-5-410x500-5-with-tr-87-valve-stem