I recently found some nice virgin Firestone 10R-22.5 at a truck tire shop, they came off the steers from a local school fleet, had them mount on my original 6.00" tubeless rims, they look great with no sidewall bulge and they fit under my grain box. I don't consider them overkill as they match an optional size from the factory.

1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy