have a look at mine advertised on here mate, im looking for about 600 and its got a 600lt tank, a 400 lt waste tank and twin reels etc, its actually working but needs a stat for hot water, its a hercules 1 from woodbridge, only downside is you have to take the van with it and its buggered as the red key is missing and the immobiliser is jammed on. give me a bell on 07968119991 if you are interested. its on ebay at the minute but i wont let it go on there for less than 600 anyway