If you want to make it on the cheap, get a electric on demand pump with a switch on the pump that turns the pump off when it gets to a certain pressure.(Junker RV's are one source for used component, Surpluscenter.com also had them at one point) For a wand, steal one off of an old 2 gallon hand sprayer, or splurge, and buy a new, cheap one from wallyworld for about $10.