Can't help on purchase options but wanted to thank you for pointing that out to me. I had never heard of Heather Cream before. Now I know what it is. Will try it when I get a chance.

Sounds like Bailey's for connoisseurs. Now, I could imagine just using a very good cream and a very good Single Malt and mix it especially for her might also be an option.
EDIT: The mfr has a website. Why not shoot them an email?
Till