The wheels you have there are called "port wheels" or adds-on and were available as an dealer option in 1998-1999. Those are going to be hard to come by since they were manufacture for one year. Try looking at some salvage yard but you would have better lucky finding the OEM 14" 6 "straight" spoke for the CE and LE.
Here's a site for reference for the port wheel
http://www.wheelership.com/camry/183...ray-14271.html
The alternative:
http://www.wheelership.com/camry/479...ver-69347.html
As xpeed posted, Toyota do contact Enkei and several other companies to manufacture their wheels. After leaving the factory, cars are shipped to different regional ports across the US. From there, they install accessories that is popular for that region. For example, cars bound for the north will usually come with extra rust-proof and undercoating while cars heading for the south might come with darker tinting. Port wheel are more commonly installed in the Gulf State (TX, OK, LA, AR, MS, AL and FL) These wheels either have the words TOYOTA, enkei logo, BSS on the center cap (or a "C" for the 12' Camrys) Port wheels tend to use the "acorn" lug nuts instead of the washer-style Toyota lug nuts.