Feedback on Third Party Settings in SAP system

Hi,

I want to implement a normal third party sales scenarion in my system and I would do the following settings

1) Create a third party Vendor.

2) Create a material type indicating that it can be ordered from third pary vendors.(I am not sure about how to do this.I think I need to assign the new material type to item category group as BANS.PLease confirm)

3) A new Document type with order relevant billing option as F2

4) A new Item category with billing relevance = F and pricing = X

5) A new Schedule Line category with Order type = NB and TOR and avaliability check os off.

Please let me know in case I am missing on any other settings.