Might you include a docking attachment with the Merlin so we could use it with other ships?

This wouldn't be something paired with the Merlin itself, but an optional piece of equipment other ships may need to enable use. Something to consider is on a larger parent ship like a Carrack, the Snub deploys from a small platform instead of a specialized collar, so a Merlin could easily be loaded into one with no additional equipment to install to the Carrack.