The configuration parameters are pushed to the devices and would be pulled down, so there shouldn’t be anything needed to be done for these.
I would do a backup of the old, restore on the new hardware, then upgrade bindings. If an OH upgrade is part of the plans, then I’d wait until everything was up and running on the new hardware. Although, something to consider is that backup/restore scripts are now included in the latest snapshots. So if you don’t have backup/restore scripts and were planning to upgrade to the snapshot builds, it may be better to upgrade first.
… or were you asking for a way to only migrate the zwave items?