Welcome.. As far as bolt patter and bigger wheels you won't be able to find newer style or larger than 15". Due to the small wheel pattern of 4". You will have to convert over to the larger bolt spacing of 4.5" Mopar/Ferd pattern. And then your options go up by about 100,000 or so. Small pattern is very very limited. As far as wagon related parts go search and hoard. Anything from the back doors on back is "wagon only" for the most part body and interior related.