I have 10 Model 2 Concept 2 Rowers with PM5 Monitors on them.
Crossbars on front and rail frames have surface rust on them. 
Selling them cleaned, lubed and serviced.  Will replace chains if needed.  Working perfetcly. 
Im not going to sand and re paint them.
I took some pics of a few of the monitors with total meters.  They have some use on them but they were well maintained.   Pick one up at Big Fitness in Cranston for $575 each