I started out with Ivy (my LD is green), but that might not work for you. Then asked what do I know about the RV. Female and a Born Free. Hmmm, your not helping much... Then I thought BF, Baby Fredia (have an aunt named Elfredia who has a green thumb). Then that evolved to Freda.
Mind is just wondering down a path. We name our cars too. Good luck finding a name. My neighbor calls it the green machine, we call it DaV. My wife is from Long Island and asked me to take something to the RV for a trip. But it came out ...DaV. Works well for us because of my last name. You might need to take a trip or two before she (your RV) tells you her name. ;-)
Congrats.
John