Surely the easiest way would be to find a 9-Track with
SCSI interface
and hook it directly to the PC.
It is. I have read thousand of tapes with a Powerbook G3 and various
SCSI interfaced drives (Kennedy, HP, M4 Data and Qualstar). Surprisingly,
for 1600/6250 the Qualstar 34xx is the best at recovering data. The Kennedy
96xx was working great on 800bpi tapes 'til the takeup tension arm started
failing self-test.