Keene also does the Mini Max Power Sluice Concentrator, it's a great allrounder (maybe the best?), but because of currency conversion and crazy shipping you are looking at around $825-850 to import one. There is an Aussie supplier if you do some googling, they are currently out of stock.
Dustin from Gold Rat also has 2 recirculating sluices. An 8x47 inch gold river sluice running dream mat with a 400 mm header unit and plumbing. Or his 6" Mini Cleanup sluice set up with a header unit and plumbing, legs/stand. He sells them in a couple of combinations, like if you need the pump, legs etc.
I foolishly sold a RDH Mini Highbanker Gold Buster 2 to a mate, was a great little recirculating banker.....I have been trying to convince him to sell it back to me.