It is not often that a manufacturer pipes in here and offers to help. I suggest you take Bryan up on his offer to help.
While I do not own one nor have I ever RV'ed in one, I am familiar with some of Heartland's product line (Big Foot, Sundance, Cyclone, Razor and North Trail). I have found them to be of very good quality in their perspective price points.
John, Joyce and Zoie (our 17# Guard Dog)
2018 Ford F-450 KR / 2019 Mobile Suites 40KSSB4
Fulltiming since 2008 and loving it