Have a Craftsman pressure washer 12 years old that the pump finally went out. Has a strong running B&S 6.5 OHV engine but a basic pump that finally went out. I believe it was rated at 2400 psi. I'm overwhelmed with looking at pumps on the internet. My pump has the 3/4" shaft with four mounting bolts in a square pattern. Whats the best pump?? Looking at Comet, Cat, and Annovi Reverberi. Anywhere from $99-450 dollars. It will not receive commercial duty but moderate home use. Need something that has good parts availability. How big a pump can I go up to with the 6.5 hp??? Whats the best place to buy one?? Thanks, Tom