A few more pointers
Sounds like a great adventure! A few things we would have loved to know in your shoes:
Make sure your 'copilot' is prepared to help you maneuver when entering parking lots, gas stations, streets, etc. It's a huge help
When backing up, don't forget to look up! You need an outside spotter, and overhanging branches will damage the RV
You said it does not have levelers, but it should have stabilizers. Use them, and take your 18v cordless drill with a 3/4" socket bit to speed things up.
The provisioning kit is nice, but use paper/plastic whenever possible. You are on vacation, don't waste any more time than necessary washing dishes!
Remember that Awnings don't mix well with Wind or Rain. Retract in inclement weather.
Plan. Stop at the grocery store BEFORE you park for the night. It's a pain if you do not and you aren't towing another vehicle.
Showers are different in an RV. A small unit will have small tanks. Use the campground shower facilities when possible. If you shower in the RV, run the water to wet and rinse, turn off when shampooing or soaping up.
Don't run around with your fresh water full. It's heavy! Keep enough for the toilet and handwashing until you stop next.
When you hit bumps (and curbs!) everything that is not bolted down will launch. Think about it.
Hope you have a fantastic trip!