I may have a requirement to build a water tower to hold an IBC tank. (1000 Litres - 1 tonne) Tanks is roughly 1m cubed. It would need to be erected about 6-7m above ground level. How much scaffolding would be required to do this (i.e all the braces and stays etc) and how much would it likely cost second hand? Here's a pic of the type of tank.