Complete Koi pond filter system

complete Koi pond filter system for sale, £700. New price over £2500+ Filter system for a pond up to 10000 litres for koi, 20000 litres for non-koi ponds, A Waterco-based bead/sand filter, with spare beads, plus a Mini Nexus with spare media, including connectors and ball valves, A Waterco-based pressured cartridge filter, 4 boxes of spare parts, 2-inch solvent weld, which includes 6+ 2inch Ball Valves, 1 new unused pump as well as 1 used pump, both are Dry mount, Air blower for cleaning both bead filters, only a year old.