Making your own anything is akin to making a car by buying parts--costs 2-3 times as much.Your much well served to buy used,but not abused components,and modify or assemble the pieces yourself.I've made thru my ol'company PESCO thousands a dredges,drywashers,highbankers,and tens a thousands a sluice boxes. The few remaining manufacturers have been around for many years and many millions a hours a engineering and stealing of the many others patents and innovations,now gone due to age,illness and theft,have gone into designing some pretty good equipment.Your cash,your time BUT every day wasted runs outta dredge season and you NEVER know if the gold prices will drop like a rock!!Tons a au 2 u 2-John