Basically, you can hire any teacher, no matter what level you are. I suggest that you go through the "Travel to the Lands..." chapter and you will find several threads about teachers in Egypt.
As for safety: depending on where you come from and what level of safety you are used to, it's not more dangerous than other parts of the world (you can have a bomb dropped on your head in Europe or the USA...
).
Two things you have to watch: traffic and men.
The traffic in Cairo is very bad and you often will run for your life.
The Egyptian men are very charming but ultimately, I am afraid to say that no matter how much they tell you that they love you, they see you as an "easy" girl from the West who is only good for sex.
You have to watch your reputation very much, it's one of the most important things for a Western woman who wants to be taken seriously.
Also, don't tell people you don't know that you are a dancer. They might get a very wrong picture of you. A dancer is NOT a respectable person!
Regarding you will have to choose between the teaching and the dancing. You can't do both.
If you want to find work as a dancer, you can ask your teacher there for tips. They all know how the scene works.
Good luck
MEISSOUN
PS:
When the lights go out - Western dancers in the Middle