For anybody searching in the future ;-)
I was able to get a Compaq Foxcon cable, this one:
http://www.nowthatsit.nl/?c=69&i=2161It has an active terminator for LVD and SE mode on one end, my UW-SCSI drive is terminating the other end. I can confirm this cable works great with the CSPPC and provides fantastic transfer rates to and from my (noisy) Quantum AtlasIV drive.
Now I only want to add a heatsink/fan combo to the 68060 CPU on the card - if anybody has any tips on what can be made to fit without lifting the 060 from the socket...