Multi-part process: What DrKK suggested, and I agree, is to fully set up the new hardware - sans the new disks. Install 9.2.x onto the new SSD.
Once that's up and running, shut down and attach the old disks.
Boot up into 9.2 and import your old pool.
Backup this data to an external drive.
Find your Config file as mentioned by DrKK and import it.
Now you have some choices for upgrading the OS. Maybe someone else could chime in. ...you could upgrade to 9.3 and then 9.10. Or you could follow the upgrade prompts in the GUI. Or you could unmount your pool, shutdown, remove the disks, install the new disks, boot, create a new pool, import the 9.2 Config and then do the OS upgrade, then copy the backup data back over.
I'm not 100% sure what to do in this situation. You aren't the first to upgrade hardware and copy your files over. See if you can find some threads about this.
Basically, you don't need to fool with the old USB drives, just work from the SSD from this point on.