MAG 24 Problem

[dogginfox]

My Mag 24 sump pump has had a substantial drop in water output over the past week. I took it apart and the alignment hole on the faceplate has broken off and has caused the impeller to shift to one side and now the impeller magnet looks all beat up. I know i need to order a new faceplate but im not sure about the impeller. Any suggestions or comments?

Anyone know where the cheapest place to purchase these items would be?

Thanks
Dogginfox