If you use that little electricity, you can probably get by with 200 watts of panels. To be sure, 200 watts is not enough to fully recharge those batteries from the 50% charge maximum draw down state in a single day. But they might cover your needs.
I believe the Honda you have produces 1800 watts continuously, and assuming all of that goes into your batteries (possible, not likely, but let's go with that), 4 hours would give you 600 Amp Hours per week. 200 watts of solar will likely yield around 450 Amp Hours each week. If indeed, all that generator capacity went into the batteries, you would be short. But there are losses in running the inverter/charger that you won't see on solar, plus, the generator probably isn't running at full load.
The 30 amp charge controller in that kit can probably cover up to 400 watts of panels, so you might have to plug in an extra 100 watts.