Nice start. Weather here in Utah is starting to get to the point where I should be climbing on the roof and finishing mine up in the next few weeks. Got the RV pad poured just prior to the weather turning bad in the fall, so now I have some place to work on the rig, which is too big to fit in the driveway. I'm going the dual SC 2030 route and have everything in the garage for upgrading to 10 Grape 100 Watt panels in two banks of 500 watts. Keeping all 10 panels in parallel should work out great for the widely varied sort of camping we do.
Keep posting with updates as you progress.