1. It'll be your basic pay, and no flight pay in the sim (nice try though!)
2. Not sure on that one, but suspect not.
3. A junior line on the 777 will have 5-6 trips on it (mostly 3 day trips), the majority being East Coast Stateside, or low credit trips. Expect to work the majority of weekends.
4. I'd think you'll love it. May not be a lot of variety initially, but gotta be better than 6 sectors a day!
5. That's it too!
Good luck!