Welcome to RC flight!

Absolutely MORE fuel! A gallon will get you through about 1/2 your training cycle if your normal. (I can burn a gallon on a good weekend. )

I'd also recommend at least 2 or 3 props. It's pretty easy to break one when you're learning. So get at least a 10X6 and an 11X5. Then you can choose which gives your plane better performance. Besides, they're the cheapest thing on the plane. No sense being grounded because you broke a prop!
Dennis-