Congratulations Wallace and welcome to the Heartland Family.
While this is a very exciting time for you I think you should be aware of something I heard just a couple of weeks ago. While Justin and I were camping in Elkhart at the Elkhart Campground in comes an older couple with a new fifth wheel. It was not a Heartland product but otherwise a nice unit. The couple were retrying the RV thing as they had an RV many years ago. Well the older fella came over and introduced himself, he was from Canada and on his way home. They picked up their unit at RV Wholesalers in Ohio. Well come to find out that they weren't given a very thorough run through of their new trailer. I ended up showing these people how to operate most of the systems. They said that they were rushed by the dealer and all but pushed off the lot. While quite happy with their unit they were less than impressed with the dealer. So my long winded advice to you is to do as much homework ahead of time as possible, get a PDI checklist available somewhere here on the forum and push back on the dealer to do a thorough job of showing you everything, and I mean everything. Do not take anything for granted. And for the things that may get forgotten or overlooked please come back here, we have a lot of very knowledgeable people more than happy to lend a hand.
Before I go I need to mention the Heartland Owners Club. This is a very nice perk to have and encourage you to check it out. Also try to make it to local and national rallies as they are a super way to get to know all of us here on the forum and get to know even more about your rig.
Good luck,
Mark