epltd, we're going at the end of June. I just bought a new rain jacket (Columbia Sportswear) that is rated as either waterproof, or "highly water resistant". Took a walk in the rain at the Oregon Coast yesterday and it was great!
I worked up two itineraries, one in eastern Scotland, and this one. I thought we were going to do the other (Edinburgh, Drumtochty Highland Games at Auchenblae, Highland Folk Museum in Newtonmore, whisky and hiking in Pitlochry, Doune Castle in Stirling, back to Edinburgh), but after discussing further with husband, he'd prefer the non-driving route of Edinburgh/Oban/Glasgow. Both itineraries have Highland Games of some sort, which is what we wanted to include. The Oban version is a little more relaxed, time-wise.
I wish I could see wool waulking somewhere, but I don't see a good opportunity in our time frame that I can get to easily. (Auchindrain historical site that weekend, but I'd need a car from Oban, and it's a longish drive for an hour's fun.) Something for another trip!