Several of the Japanese pickups like Toyota, Mazda, Nissan, etc, plus Dodge Ram 50 and older Ford Couriers run the same 6 lug bolt pattern as the Chevy pickups. You might expand your search to include some of them, as they're mostly rated as "1/2 ton" weight capacity. The older Toyota Land Cruisers also run a 6 lug wheel that's a direct swap with the 6-lug Chevy wheel.
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!