I recommend taking a closer look at a set of Prology monocrystalline solar panels with a power of 400 watts with a 30 A charger controller
I installed this on our RV in rainy Pacific North West.
Easy installation.
Ever since we disconnected from the piedestall and have only used solar power. I did not expect to be able to do that here in Oregon. But our batteries get fully charges every day and during the day we discharge To 40 - 50%, BUT IN THE AFTERNOON WE REACH 100% again. It has been like that even on rainy days. We can run lights, fans, water pump, tv, charging for PC, Phones and Ipads. All this on 400W solar system. I'm very possitive surprised by this.
Moreover I save 33% of my money.