I think this would make an excellent Edict from the Austrian House! The route should be the one we feel more secure to take with the limited intelligence we have at this time. The building of extra vessels should not be a concerned to other Houses because these ships can support our lands in the Outremer. A strong Mediterranean fleet gives over security in the region.
Also my Duke an Edict to offer terms of peace to the Venetians would be a wise choice in this time of peace and building.