Try any of the trailer wheel suppliers for a 16" 8-lug spoked "wagon wheel". They carry the same bolt pattern as the 3/4 and 1 ton Chevy, Ford, and Dodge trucks use.

https://www.amazon.com/eCustomRim-Equipment-Trailer-Wheels-Design/dp/B007OY7UGW/ref=sr_1_7?dchild=1&keywords=8+lug+trailer+wheel+16%22&qid=1587506655&sr=8-7

Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!