Hi artielange,
Welcome to the Heartland Owners Forum and Family. We have a great bunch of people here with lots of information and all willing to share their knowledge when needed.
When you go to pickup your new Big Country do a really good PDI. Take your time, make sure you can operate everything and everything operates.. from city water being hooked up to draining the tanks and every appliance and door in the unit. Even try to stay a day or so at the dealers lot or close by so you can actually use everything.
Enjoy the forum and your new toy.
Jim M