Roland XR-640 works, needs new print heads Great machine for parts

This is an old well kept Roland xr-640. Its print heads are no good any longer, has new cap tops and has been cleaned up by our local tech. It would be a great machine for someone looking to install new heads, or could be a great machine for spare parts. I need to move it, please make me an offer, I am asking 1250.00
Thanks!