@LADiego I wish I knew the values of the resistors but I'm out of ideas in that regard. I'm sure that they would be low values so if you can find out what the scsi2sd uses, that would be a very likely entry point or resolution man.
The S6000 has its own termination on the back, so there is that as well but I assume you are looking to do an internal install. For dual pcmcia card readers, I prefer to use them in an enclosure so I could utilize them by more than 1 device as I'm sure you're aware each slot has its own id. I think on default without no pin header they default to 0 and 1.
An alternative on the MPC 2000 or 3000 (as lame as it sounds) could be to plug a zip drive in the back and have the termination switch on. Or if you happen to be using a 50 pin cable with more than one port on it, you could get an internal terminator such as this: