Touring Scotland

Dude, sort out your ideas first, take a breath, have a beer and then look at rwgps.

• BD is doable on a gravel bike, 45mm tyres are plenty, make sure to have some shoulder knobs if it gets wet.
  
• North to South is enjoyable. Some steep bits along Loch Ness section I would have not wanted to do going up. Corrieyairack is not that bad actually, some worse bits near Loch Rannoch if it rains, but generally fine.
  
• An Turas Mor looks like a great route, takes in most of the BD, and a good part of it is also on the HT550 and GB duro. I did a good part of it and it's nice, but would only follow it to the point where it turns left onto Glen Golly River and avoid that. You can instead follow the GB Duro route there and either go straight for the north coast (I hear Kearvaig Bothy is ace) or follow the route to JOG.
  
• Village shops have really short opening hours and might be far between, I would recommend a stove. You can carry some adventure meals as an emergency food and then only use them for when you don't find open stores. That way you just need a small stove and a mug to boil some water but no pots and such.
  
• I know you and your partner ride strong, but 100mile days are long days on that route, expect to ride in the dark if going in September.
  
• Definitely get the cabin if it's two of you.
  
• Lastly, I'd recommend a pair of crocs for fording shit