I have a 2008 T&C Touring with factory rims. The road salt has destroyed the finish with alot of corrosion. I know I can have them refinished for $400 but I thought maybe some other rim would fit without modifications.

 

There are a number of Chrysler/Dodge rims that in use that are of the same specs as your T&C that will interchange, you may just need to mount the proper size TIRE on them for your T&C. There are also a ton of aftermarket rims available from such places as Tirerack.com.
Rim specs can be found on the tie placard usually located on driver or passengers door jam.