Wanted: Dexstar trailer wheel

I need one or two rims of the old-style Dexstar (Dexter) trailer wheel, sometimes called "494" rims, Star rims or California rims, I believe. They are 9.44" between adjacent lug hole centres (NOT across the wheel centre). The rim size I need is 15" diameter, could be anything from 5" to 6" depth, but 6" would be ideal. Please email, call or text