I've now booked the PI at Dyce Airport for the Saturday night and am arriving in to Aberdeen on the Red Eye coach from Glasgow. On the way back on the Sunday I might stop off at the Tartan exhibition at the V and A in Dundee, when rail tickets are released.
Using my Senior Railpass I even get a good discount on the Aberdeen Airport Bus, by using Plus Bus.
On the Saturday if the weather is too bad for piping I have a cracking plan B to go up the North East Coast to Peterhead, Fraserburgh and all the way round to Cullen (for Cullen Skink) and Elgin.
Steve Marsh did a good video recently on Cullen Skink at Cullen.
Who knows I may be able to fit in a Clyde ferry on the way up on the Friday, or even the classic 4 ferry circular route- Glasgow to Ardrossan to Brodick to Lochranza via the String road to Claonaig to Tarbert to Portavadie to Dunoon to Glasgow.
There may be even be a trip report in this, who knows.