Ok. I ended up with (2) SolarWorld panels, 250 watts each. They are 30v panels. I ended up getting the MPPT Tracer 2210RN Solar Charge Controller since it was only $100 and seems to get rave reviews. I also got some 10AWG copper wire (50') since I am putting the panels on top of the RV right above where the battery bank sets. Finding batteries in my area is limited. So I went to Sams Club and picked up (2) Duracell GC2 Golf Cart batteries.
I am amazed at how the panels will put out the 30V even in a shade. They seem very efficient. But I am no expert.
Do I need to worry about the wire that runs from the camper to the battery? Normally this camper came out with a single low hour 12v deep cycle. I am taking it off and putting the two 6 volt batteries together. If the wire is okay, then do I have to worry when I go to add two more batteries in parallel? I just didnt know if this would put a heavier load on the camper wire.