ok so i want to make a unit that i can put in at weekends etc... was thinking of a smev 9222 which has sink ,tap and a burner.. anyway at Busfest today seen some vans with just a sink and tap and the gas burner was in a draw and was a £15 jobby for go ourdoors etc.. which for me would be fine!!. my question is with both ideas what else do i need.. can the tap be hand pumped or does it need an electrical supply etc. over and above the cost of the smev 9222 or single sink and tap are all the little bits not including the unit quite expensive. Finally can any recommend websites to look for a sink and tap combo or smev 9222 please!!!!