All food supplies should be brought from Kusari, more specifically, Samura or Farmers Alliance owned fields, the Zoners do not have the capability to produce food in quantities that come anywhere close to those of Samura and the Kusarian farmers. And we require extremely large quantities of supplies. It should be delivered to Crete, the exact location as yet undefined, you will be informed of it upon mooring.
On the other hand, it does not matter where the 'steel' originates, our engineers are supremely capable of melding technology from any origin into our ships. This is why we have prospered, and will continue to do so. The ship components, whether they be engine components, hull panels or any materials required in the ship building process should be delivered to Tripoli Shipyard. The materials will not be put into storage, but directly onto the construction line, so they should just be taken straight from your ships once they have moored.
Should you require exact quotas to fill, we can provide a list of the quantities of supplies that are most in demand.
We can offer little in the way of Credits as compensation, however, you may find that certain artifacts that are sold in vast quantities upon Crete to be more valuable than Credits. As it would seem that there is no shortage of demand for them elsewhere. Those should more than suffice as payment.