Create Default folder structure when object created in Salesforce.com

Hello,

I have the following business scenario: When new customer is created in Salesforce.com we need to create default folder structure in BOX for this customer. The default folder structure is:

Customer

     Trip Reports

     Legal Documents

     Quotes USA

     Quotes EMEA

All files under trip reports and legal documents should be visible to everyone however the files under Quotes USA should be visible only to people belong to the SALES_USA security group we have in BOX and Quotes EMEA should be visible only to people belong to the SALES_EMEA security group.

We used the BOX SDK for Salesforce in order to create the folders structure however I could not implement the security requirements because the SDK does not let you associate folder with groups, it let you associate it only with users.

Does anyone know how can I bridge this gap ?