I have an Esterell folder and it is brilliant but you need to have an awning or similar to complete the extra room, some awnings have a toilet extension useful with young children. If you need new Gas Struts go to SRUTS DIRECT as they specialise in them be sure to give them the details of your old struts as the pressure on the rear ones is a lot higher than the front ones. Rear are normally 1000 newtons around 900 psi the front being around 700psi but when lowering the front end beware of the roof coming down quickly and hitting the window (easy to crack). As for spares go to a caravan breakers or look for one for sale repair or spares!!!!! A lot of them have a gas heater unit in the floor but have it checked by a competent repairer.