Apologies for the delayed reply.
I haven't had rusting issues with my ZDP189 Caly3, but I use it often and not much in corrosive environments.
For honing, i usually use the perforated DMT diamond plates (e.g. DMT Deluxe Aligner Kit can be had for ~$50, DiaFold for ~$25) as they are very light and work as well on ZDP189 as on 420HC, etc. The diamonds are so much harder than the steel & carbides that there is not a difference in sharpening time between mid-grade and high-carbide steels. I don't have a sharpmaker though lots of folk seem to like'm, but I prefer plates to rods for major sharpening because the wider surface stabilizes the blade against the hone as you sharpen, prevents your hand/wrist from inadvertently altering the angle during the pass, producing a more uniform grind. I did make a strop and bought some polishing compound, but i only use that for my straight-razors where a finish <5 micron is noticeably advantageous. Everything else ends with a single pass along a DMT plate of chosen grit at slightly higher angle to apex the bevel and I'm good to go :thumbup:
If there is a LOT of damage or I want to bring the bevel angle down more than a few degrees, then I'll bring out the wide waterstones or Norton Crystolon stone (all inherited). I haven't tried these on the Caly3's ZDP but i have re-beveled CPM-3V and M390 blades on them without issue.
As a knife enthusiast, I recommend getting a simple, light-weight set-up like the sharpmaker or DMT hones and learning about edge-finish (coarse vs. fine, what works best for your use), angle-control, and apexing a bevel (i.e. the microbevel). Much of this can be done simply holding the hone in hand. The angle-guide can then be used to assist in producing a uniform bevel and thinning out your knives behind the edge to improve performance (if needed). If you then become obsessed with restoring knives or re-profiling, it's time to invest in a more expensive system
Good luck with the addiction.