I agree with DFWScotty. Our first trip was 4 days 6 miles from home, boondocking. Tested the water pump, the heater, almost everything except the A/C, which was tested in due time during our spring heat wave. If you are going to have problems, have them close so you don't have far to go for help. That's good advice for sure.
Jim & Linda Tator
2013 Crusier CF34SS GMC 3500 8.1L Dually
154 nights in 2013 - 4,370 miles
178 nights in 2014 - 5,082 miles
365 nights in 2015 - 6,040 miles