Hi Jantomo, welcome back.
Yes the time soon flies and the excitement builds ! Now for some answers.
1] Yes it is, the airport is right alongside the 101.
2] I think you will have time to do either option in Yosemite but of course it will depend on your arrival time. If you went to Glacier point same day it would give you a full day to explore the valley and then Tioga pass the next when leaving for Bishop.
3] You will enjoy the drive from Bishop and at Lone pine you will see Mount Whitney, the highest point in the States and the following day you will see the lowest point at Badwater. You could stop at Panamint springs for refreshments and close to the Stovepipe wells resort are the sand dunes, great at sunset.
4] Those places in DV are all doable and to get to Vegas via the 160 from Pahrump [using the Ash meadows/State line rd from Death valley junction to get there] will take you to I 15. You could head North on it for a bit until Sahara or you could continue to Las Vegas blvd [64] past McCarran int airport and drive all the way up the strip for a cruise. Mark will possibly pop by with a local knowledge on this one.
5] A visit to MV would be possible but I would get an early start, spend a couple of hours at MV and leave a nice amount of time to take in the views along Desert view drive and arriving near the village area for the sunset at Mather or Yavapai point.
6] Along '66 you will want to make some stops at the quirky little memorabilia shops but you'll know when to.
7]At the Hoover dam we just stopped for a short while, it was busy and a lot of construction going on with the new bridge but I have heard the tours are very interesting, that's your call.
I hope you have a great time and share your thoughts with us when you get back !