We've had a Pilote Reference 716P for over four years, bought second hand when 6 months old, and now with 25,000 miles on the clock it still hasn't had much wrong with it.
The Fiat 150 engine works well and despite clogging it down the M1, round the M25 and M20 on the way to Eurotunnel (and back again) the fuel consumption isn't bad.
A tap replaced in the bathroom sink and internal mechanism of the Toilet cassette malfunctioning is about the only things I can think that have gone wrong.
No water ingress and ground clearance no problem.
Check payload before buying (whichever make or model you buy) as the payload quoted by the Salesmen and Brochure seem to have been worked out on the back of a fag packet with no relation to the real world of a fully loaded holiday mode vehicle.
A few squeaks (which MH doesn't) and a few alterations (including replacing bulbs with LED ones) to some of the original habitation bits and pieces have been done but the MH has been, and still is, a good'un.
Has it got a spare wheel, what gas bottles and/or system do you have, an extra leisure battery is a bonus and Solar panel is almost essential – it is to us.
Does it have Smoke and Carbon Monoxide alarms, fire extinguisher and fire blanket?
You may be slightly over the 3 metres height for Toll roads abroad (higher Classe and Toll tag possibly not allowed) but measuring it accurately may help.
I'd recommend the Pilote brand and would buy their vehicles again.
Hope this helps.