As long as the machine doesn't have a motorised head on there, it should be a case of changing the motor, but it may need a rubber and/or housing too. We've never done that particular conversion so I am not sure.
220-240v ones have a Panasonic SDS1304GZDC in there.
They are supplied new as a chassis and motor complete though. That would be a better route, as it removes the doubt about the housing.
It isn't a stock part. I can dig into the availability of those if you want?