source for 2.5-inch thermal paper for TI PC-100A (SR-52, SR-56, TI-58/69)

[brouhaha]

Does anyone have a good source for 2.5-inch wide rolls of thermal paper for the TI PC-100 series printers that are used with the SR-52, SR-56, and TI-58/59 printers? The long-discontinued TI paper was TP-30250, which was a 2.5 inch wide by 3 inch diameter 85-foot roll. It appears that everything else in the universe uses 1.97-inch, 2.25-inch, 3.125-inch, or wider.

I found two listings on Amazon for 2.5-inch paper, but I think they are in error, as both actually say 2.25-inch in the details.

I'm hoping not to have to buy wide paper and cut it, but I can do that as a last resort.

Are there any web sites with forums for ancient TI calculators?