I didn't want to step up to 15"s and checked out the coopers then in my research I just found these load range D 14"s trailer tires at the tire rack Kuhmo 857... Don't know anything other than tire rack has them and they are not too much money... between $70 - $85 depending on size...
http://www.tirerack.com/tires/Sizes....partnum=9R4857