I don't know specific schools off of the top of my head, but I think some DO schools will require a DO letter of recommendation... so you should obviously remove those schools. Just do some quick googling, or if the information isn't readily available, give the admissions office at the school a call to confirm. Wouldn't wanna waste any money on applying to a school you are DOA at.
That being said, I think you should save up money for travel this fall.
When I said you should save up money I just meant I think you'll receive a handful of interviews, that's all an RV would be a cool way to get to see more of the country when you're traveled my to interviews though for sure!