First, thanks to everyone for the responses.
I just called Klipsch and they said I would need a specific part number to get anything from them. Does anyone know what that part number would be?
If indeed I have been convinced to keep my KLF-30's that still leaves me with the center channel problem. The KLF-C7 is not an option under any circumstances. My question then is, will "upgraded" KLF-30's better voice match the RC-64ii? It doesnt have to be perfect for me and the current RC-62ii isn't causing me any voice matching concerns but the better they match, the better they match!