How many miles on the MH? Has the transmission, rear end and brake fluids been changed. I think some worry is normal, every trip I have made some thing needed repair. The only system I have not had to fix on the MH was the slide, and the roof top A/C's. If you go on the trip knowing things fail and have to be fixed the trip will not be as fearful. My MH is 21 years old with 109k miles on it I would be lying if I said I was not concerned to make another long trip with it, but the concern made me change fluids and check every system so I will be leaving on a trip cross country in two days, concerned but not fearful. I have posted on here many times and have gotten help to get things fixed from the forum members when things failed while on the road. Hope this helps.