If storage rent is 3,000 and feed plus herding is 6,000, what is the basic allocation?

Kitab al-Rahn: Storage Costs, Growth and Additional Collateral

• Pledgee 3,000; pledgor 6,000
• Pledgor 9,000; pledgee zero
• Pledgee 9,000; pledgor zero
• Each pays 4,500