Just returned from Scotland so I thought I'd drop my experiences here for posterity.
We traveled around the Highlands first and picked up some of the "craft" brews we found in grocery stores or local pubs including some by Black Isle and Skye Breweries. Their lineups are comparable to say Sam Adams - nothing terrible but no reason to drink another. We ended up picking up a Lagunitas IPA at a grocery store one day just to taste something hoppy. Stick to whiskey and gin outside the major cities or stock up in Edinburgh (see below) before driving around the country.
We ended in Edinburgh and I had noted the Hanging Bat and Stockbridge Tap while researching the trip. Had planned on hitting one or both of those but luckily we stumbled upon a place called the
Salt Horse about a half block from our hotel. Great bar and bottle shop with a few taps where you can drink in or take out. Cantillon RdG and Kriek 375s, 3F, Westy 12, Fantomes, Cloudwater cans, and lots of other great stuff on the shelves all at great prices. Selection is much larger than what is listed on the website. Very knowledgeable lad in there schooled us on the local/Euro scene. Highlights we drank included Tempest Mexicake, Temptest Brave New World, Beavertown Black Betty, and a Fieldworks collab called Travel Notes.
We weren't there for the beer so finding this place was just a bonus. The country is awesome. Highly recommended trip.