It looks like the CCW team has not built out bundles for the SM56 supervisors at this time. You can either create your bill of materials (BOM) a la carte or (what I would suggest) is to open a partner helpdesk ticket to have them build and validate a BOM for you.
If you're not a Cisco partner then you can ask your preferred partner to do this on your behalf.
And, yes, the 9300 series can be used with either ASA or FTD image (or a mix of them as multiple logical devices).