Dear Tripadvisors!

Been planning a RTW trip (2 people) in about a year from now.
My first RTW, and I'm not too experienced flying to begin with. (And english is not my first language, so sorry about spelling etc).

I've been reading the forums, trying to find answers to my (many) questions.
I have a couple I can't seem to find the answers to, hope you guys could point me in the right direction...

1. Denmark is my native country. Doha is my first stop on the RTW ticket. Starting in Cairo, not CPH, seems to save me around $5000, not including one way tickets from CPH to CAI. -So that's a no-brainer, right?

Here's my question: Am I allowed to fly straight from CPH to DOH on a seperately bought ticket and thereby voluntarily "miss" the flight from CAI to DOH on the rtw-ticket? -Or *must* I be on the plane from CAI, since it's the first flight on the RTW?

The reason I ask is that it is both easier (fewer fligthts and less traveltime), and cheaper for me, than arranging a flight from CPH to CAI (over IST), only to transit immediately and continue to DOH over AMM.

-Or is there an even smarter way of doing it?

2. As far as I can tell, if I start in CAI (and my first stop is DOH), Royal Jordanian seems to be my "ticket issuer" as far as I can tell. Is that a decent choice? -Or would I be better off with BA/someone else regarding customer service etc?


Hope you guys can help me. And sorry in advance if this is really basic stuff. I'm still learning.