I have a 1996 Renault Elddis Eclipse motorhome. I have changed the roof vent over the kitchen for a Fiamma vent. I now want to change the roof vent over the cab bed, near the front and in the middle of the roof. I struggled enough trying to reach the kitchen vent, off a step ladder, I cannot reach the front vent at all off a step ladder, has anybody got one of these vans and changed the front vent, is it actually safe to get on the roof, without the fear of damaging the van. PS I am 74, 6ft 2 ins and 18 stone, not exactly a fairy. The pic was taken before I changed the kitchen vent.