Look at the Bogart sc2030 charge controller maybe about a 130 to 150 w panel. That will give you a starting point which can later accept up to 3 more panels if you decide to expand. When you expand or if you want to custom tune the parameters and see how much power is going out and into your batteries add the Bogart rv2030 system monitor.
You will have good stuff if you keep the system small yet if you do expand you wont be rebuying components. Run at least 6 gauge outdoor type cable to the roof and into a plastic junction box. I was able to get 4 gauge into the controller terminals. Later it will be easy to add panels. sc2030= $120.00
I was going to recommend solar cynergy panel at solar blvd but I just checked and they now want $960 for a 130 w panel. I just bought 4 of them for $620 with free shipping a month ago. They had to make a mistake on the ebay listing.
Gold plated?