Welcome to Scotland!
We had heard rumours of strange peoples drifting across the ocean but now I see that they are true. We welcome you crew to our lands and invite them to come and sample a dram or two of our finest Scottish whisky. We will send a case back with them for your people back home.
Thank you also for your offer of trade. As you may be aware, Scotland knows has not yet mastered even the secrets of fishing, so open borders would bring us no trade benefit, but if your merchants would be prepared to bring a generous selection of their spices and other exotic wares in their ships, we will offer you our finest Scottish Beef, rice, and of course, some of that infamous pirate gold

And of course as part of the deal your mechants will receive the right to establish lucrative overseas trade routes with our numerous cities throughout our lands.
We are happy you have found us and wish you well on your onwards passage.
Regards,
Munro
Steward of Scotland