Get the serial number and call or email Jeff Rowland Design Group to find out what upgrades are available and what they cost. I think the phono board can be added at the factory.
I don't think that there is any real risk if it works and the price is right. I wouldn't worry about reliability; Rowland stuff is pretty bulletproof.
I don't think that there is any real risk if it works and the price is right. I wouldn't worry about reliability; Rowland stuff is pretty bulletproof.