Knock yourself out;
All pretty good, mid section is the best (IMHO) with Galibier, Izoard and l'Iseran being amazingly good.
Loads of stuff around Barcelonnette area, this is a nice run, the Gorge du Daluis is really nice, not a pass, relatively flat (being a gorge) but great scenery, good surface (last time I was there) and excellent twists make it a real gem (not much traffic either). Allos is also very pretty, and La Bonnette for it's claim of the "Highest pass in the Alps" - and stunning views and the old miltary remains dotted around.
Bit more of a challenge, long day, and the rough in parts (but spectacular in places) Sampeyre;
I think you could do part of the loop around Mont Blanc on your first day, get to Barcelonnette folliwng RDGA on day two, pick one of the looping route around the area of day 3, and have two days to get back taking in some of the better passes you missed on the way down.
It is also possible to do the Gorge du Verdon from a base in Barcelonnette...
You really are spoiled for choice and could easily make this a an 8 day trip and not run out of new routes to try, just piss around with MRA (Other route planners are available) and see what looks to work best for you.....
...Or send me £500 via paypal and will work out an itinary for each day starting and ending at a tried and tested Hotel, with scheduled coffee and lunch stops along the way, as well as tyre recomendations and what oil to use.
