I seem to remember mounting Akai CD-ROMS from the Mac's CD-ROM drive on my S3000XL connected via SCSI. You just have to set the sampler to the right SCSI ID to mount it. On the Mac it will display a message that the drive is not formatted. Just ignore this message (and you can't do anything else on the Mac until your done loading your samples). Then, assuming you have a Zip drive in between, switch IDs on the sampler again to mount and then save the samples/patches/volume to the Zips disc. But I will say having a dedicated CDROM drive for loading the samples is a lot easier.
MESA and Recycle were great too. I used them for 10+ years. Once I got Ableton Live for my MBP running 10.8.5 I used MESA to get out all of the samples from memory as AIFF files using a PM9600, sent them over the network to the MBP while running 10.6 (since 10.7 killed OSX to Classic networking capabilities), and then set them up in Sampler and Simpler in Live. I had to remap and everything.
Sweeping the filter via sysex is not possible in the S3000XL, as this was not a realtime control. You would need to assign the filter to the mod wheel or another CC and then you can do that.