The recipe posted in this thread is not suitable to use as a clone for Jacobite. Traquair is actually very forthcoming about the ingredients they use.
The grain bill is:
* 2-Row from Muntons - Most likely this is Maris Otter
* Crystal ~ This is most likely a higher lovibond than normal crystal, probably 90L or 120L
* Roasted Barley
That's it for the grain bill... nothing more. For the crystal and roasted I wouldn't suggest going beyond 5% per grain of your grain bill...you'll get all of the color and flavor you need for Jacobite within 5%.
For the hops, they only use one type...Kent Goldings...that's it...and they use them sparingly.
And then of course, coriander...most likely in the 1 to 2 oz range per 5 gallons.
The yeast is, without question, Edinburgh.