I've just completed the install of a Go Power 480 watt solar extreme system on our Winnebago. It's a complete kit, and yes of course one could probably part it out & mix & match and get a great system as well, but the Go Power system makes installation and operation fool proof.
On the other hand, nothing is fool proof to a sufficiently talented fool such as I
The only part I did not do myself is hooking the switch up to the AC panel, had an electrician do that for me. Also got him to install a 30 amp plug to the outside of the house.