Sweet... Weather's supposed to be nice. Probably won't need the Generator.
You probably already know but...
You might want to checkout Frisco (Where I actually camp) while you're there if you haven't before. Much nicer campground IMHO... Surfing's better in Hatteras.
Also... HF Coupons: http://www.hfqpdb.com/
You'll Probably also want a funnel with hose.
https://www.amazon.com/Long-Flex-Flexible-Funnel-Tube/dp/B07N979R3L/