A few issues in my first long trip

You want a tank by-pass kit ( to keep anti-freeze out of your hot-water tank), but a "pump converter kit" is what you use to pump anti-freeze directly through the water pump. My first RV was a pop-up, with neither of the above, and I winterized by pouring a lot of anti-freeze directly into the fresh water tank every winter. When I bought my fifth-wheel, I did not realize right away that it came with a pump converter kit. So I poured gallons of anti-freeze into the fresh tank!! Once I figured out that I actually had a pump converter kit, the winerizing process only needed one gallon of AF.