I have a spare MP40 that I forgot I had but I no longer need. The dry side works but is a bit noisy and is probably due for a bearing replacement, the wet side is also used but is pretty quiet and in good shape, I purchased this 2nd hand from a local that was getting out of the hobby, and upon cleaning it the controller fell into water so the unit comes with out it and the power supply, but I kept it as a back up incase I needed one in a pinch. $70 Shipped
