Classic Scenario Possibility

Hi Friends,

I am a first times for Classic Scenario implementation.

Can the below scenario is a Possibility in SRM

1. SC creation

2. SOCO

3. RFX and Vendor Response

4. Central contract in SRM and distributed to MM

5. Release orders (PO) in MM with ref to Central COntract

I have few Questions:

1. What is the BSA attribute will be there in Classic

2. Can we create initiate sourcing from SC in CLassic or every time we create SC, it will create PR in ECC.

3. Can central contract be created locally in SRM and distributed in ECC (similar to Extended Classic)

Appreciate any help in this regard

IS