I actually got a dog kinda by accident when I was on the road working in Arizona for a couple of years. I first stayed in Motel 6 and Extended Stay hotels that allowed pets. Then I started renting rooms off Craigslist. I see you are in a camper, is the camper going to be in a set place, if so I would look for someone close by to where you are staying, that would look after her during the days in exchange for a fee. Hopefully with their own dog and a fenced yard. The best solution is to get a girlfriend close by that will watch the dog during the day and hopefully cook and keep company at night and weekends.