I have a SCAG Tiger Cub with 2200 Hours on it. It's a 19 horsepowers and the motor is shot. We used it on tuff new properties for a few years. The deck has is in goog shape(very little rust and no cracks) I already replaced 1 spindal and the wiring harness. How long should the Hydro pumps last if I repower? Or is it time to spend $7,000 for new insted of $2,000 for the motor????