maybe do aluminum 22.5 wheel blanks in the backspace you want and have the pattern cut in them for your frame / axle setup .
i have seen the blanks on ebay a lot over the years . but there true blanks no designs or anything .
otherwise i dont know were to look for bigger wheels for your style lug pattern or spacer even .
few links but maybe they can help ?
https://www.wheeladapter.com/wheel-adapters seen his product first hand a few times . nice stuff .
https://arrowcraftproducts.com/
there is others out there . these seem to be the 2 most popular for a search result .