Thanks a lot for the information everyone. I've been trying to join the revcon forums and get some sort of contact with a seasoned revcon owner that's been through all the trials and tribulations... but no luck - my member requests are not being accepted. Most of the forums and posts about Revcon's are from years ago... so who knows where all the owners are.
Femailyetti - That's exactly how these lug nuts are. They have 5 huge lugs that turn either left or right depending which side you are of the RV. The big 5 lug nuts is what makes it more difficult to find replacement wheels also.
Thanks again - I think the smartest route would be to get 16s made, so I have a wider variety of tire selection.
- Jacob