I suggest getting familiar with the migration process first on a test PC is you have access to one
Then when happy with that get a Veeam endpoint backup created along with recovery media from the SBS, it will be able to work alongside built-in server backup (if you use that) without a problem just schedule as a one off job for instance
I'd uninstall manufacturer specific utilities if the new hardware is a different brand, Dell > HP for instance.
If you get the correct RAID drivers prepared for during the wizard.
If you use dynamic disks there are a few dialog boxes to read and deal with but it will work
After the restore which may sit for a long time initialising the desktop you will have to install target machine NIC (set the static IP) and chipset drivers and give the system a full once over as there will be a few other minor issues to correct but nothing too scary.
I would do a full trial run with the restored new hardware server on an isolated network to avoid DHCP conflicts etc.