Requirement for SOB

Dear All ,

One of our Business divisions is planning to open a subsidiary in the Middle East (ME).The requirement from Business is they require a Trial Balance in the Currency ME.

What are the options we have.

Option 1-Standard Route

1.Define a new legal entity

2.Define a new SOB with the new currency , as COA ad Calendar is the same..

Option 2-

Manage using a secondary Ledger with transactions being done for the Legal entity in the primary Ledger itself.

Question-

Is there any way option 2 is a feasible method , can it be implemented be defining an Inventory Organization for that entity and then manage the rest through some rules using the SLA...