You’ve got a strong looking line up already but as you’re limited to five rounds I’d consider swapping Trump Aberdeen in for Murcar as it’s unquestionably a better course and they’re relatively close to each other.
I see that Fraserburgh has received a few recommendations. I haven’t made it there yet but it’s near the top of my Scottish to-play list.
David- really? Unquestionably? Based on a brief look from close to the clubhouse and recommendations from several well-traveled golfers, I am actually thinking about driving up to Balmedie before the Buda for a quick round. And a) I don't like to drive nor b) pay $$$$$ to play golf. Now, if you want to argue that Murcar is a better value, well, maybe you have something there.
Re: Fraserburgh, besides #1 and 18, I liked the links a lot. We played it last summer, and, unfortunately, the turf conditions, especially on the greens, were awful. One could still appreciate the design and the wonderful site, but it was hard to enjoy the playing conditions.
Re: Carnoustie, liked it a lot my only time there 15+ years ago and hope to get back soon. The reactions to it might be akin to those aimed at Spyglass Hill when comparing the former to TOC and the latter to Pebble Beach. If one doesn't like difficult courses that lack the natural beauty or historic significance, there are other options.