Check out the sponsor trades section and look under RATOVIC pump. For $325 you get a 1.5" pump and all hoses and fittings for your highbanker. I don't have one yet but when I have saved my pennies I will be getting one for sure....the value is too good.
As for the Highbanker I'm not sure. You may have to travel to Ballarat. Check out GoldRat highbankers at www.highbanker.com.au. From all accounts theyare a good item and locally made too.