Colin
Sorry I'm not going to be meeting up with you in the Highlands this year. I hope you enjoy yourself.
As you probably know, Tomintoul is a fair distance from the likes of RD/Golspie/Tain etc so unless your staying overnight up that way you might end up doing a lot of driving for your day trips if your seriously thinking of playing all those courses as well as Brahan.
Within an easier distance you have the "local" courses such as B of G, Grantown, Dufftown, Kingussie, Newtonmore, Nethybirdge, Carrbridge and Ballindalloch Castle with the last 3 being 9 holers. All come into the small and local golf club category. Most are fairly scenic as well, and all are very well priced. B of G is the best in most people's opinion and I wouldn't disagree. All are fairly playable although I'd warn you that Dufftown involves some serious hill climbing.
Slightly farther afield are the courses near or on the Moray coast. The best of those are Elgin, Moray Old and in my opinion at least Duff House Royal. Cullen is short and quirky, while Strathlene and Buckpool, on the cliffs either side of Buckie just provide some great holiday golf.
Email me if you need any more info.
Niall