Changing heat pump to heat strip

I appreciate everyone's input. I use my coach year round and like to do winter camping. This is a 2016 MH with Coleman units on top. One has a heat pump function. This other is a standard AC unit. Many nights it drops below that 40 degree threshold. I hate using space heaters and propane. My Coleman units have an optional heat strip add-on which I am having added as we speak. Fortunately, I am not having to give up the heat pump function on my one unit as I originally thought, and as one poster mentioned, it gives me both options. I personally like the noise of the roof air units to sleep by, so it fulfills the heating issue and the "white noise" matter for sleeping. I may come back at some point and update everyone on whether it was money well spent.