New Trommel - 1 metre per hour complete with a sluice 
This is the start of a new range of trommels built by professional engineers who have been building mining machinery for about forty years. Most importantly, this is on wheels and can be easily manoevered around a site by one man. It fits into the tray of a 4WD ute and is petrol driven.  You will need a pump and hoses to hook up to the manifold and plenty of energy to feed it. This is quite legal to use with a miners right as long as you load it by hand, otherwise that is mining and you would need the appropriate licence .