We have a good agreement with DHL for "oversized" shipments of okoume sheets (250x122m) in Italy and Europe with satisfactory standard rates.
For example:
the standard shipping to Naples for 8 sheets of 6mm plywood (to be clear, as for the Argie 15 kit) will cost about 70,00€ + VAT. A little more or a little less for other areas of Italy. In Europe (EU) it depends on the postal code for any disadvantaged areas but the average cost is 130,00€
You will always have to request a quote because there may be additional costs (eg delivery by appointment, need for a tail lift for unloading, etc.) but you can easily do it from the catalog page and basically the cost remains acceptable.