Thanks to Scottish local @Lochboisdale for the suggested route around the Hebrides and Highlands of his homeland of Northern Scotland. (Flown in reverse so the sun wasn’t in my eyes the whole time!)
Sitting at my desk in the southern hemisphere today, I took him up on his recommended flight plan, starting out at Glenforsa (EG13) on the Isle of Mull, and just over two hours later, landed up at Wick (EGPC) after 325nm worth of virtual flying.
The .PLN file of the route is uploaded to worldtour.flights for those who want to give it a go themselves! Cheers