I'm planning to ride the 200km Cairngorm circuit pictured below next week, starting in Blair Atholl. I've done lots of walking and climbing in the Cairngorms, including multi day wild camps, but I've never bikepacked it for 4 days before!

It's supposed to be a bit of a holiday, so as you can see I'm only aiming to cover 30 miles a day. My questions are.
1. Do I need to worry about deer stalking? I don't want to get shot!
2. Food. Do I carry 4 days supply, or stuff my face/bags with food at Kingussie/Tomintoul/Braemar, and just carry a few days reserve food. I'm planning to take light and dry food like cous-cous, on the assumption that water will be prevalent and so not worth carrying a huge amount of water weight in boil-in-the-bag type camping meals.
3. I'm keen to camp in the wilderness as much as possible-does anyone local know of any particularly good spots along the route?
4. River crossings...I don't fancy soaking my five tens, so was going to pack a light pair of flip flops-any locals know how the river levels are looking currently? I know ScotRoutes did this route(or similar) earlier this year and found the levels quite high.
5. Any other general hints and tips for a c. 4 day BikePack?
Thanks in advance!
Chris