Float tanks & "trailer" layout

[Float tanks & "trailer" layout]

Where would you guys buy a decent 30 gallon float tank?

[Watercannon]

What do you guys think of a 5.6gpm@3500psi 20hp honda 12v Hot Watercannon skid? I have found one here local that only has a couple of hrs. on it for a good price. I am still putting together my equipment for my start up this spring. They seem like a pretty good value even when they are new, or am I missing something.