I found this which gives some info on the reach of all the Astra satellites:
SES-ASTRA - Interactive Fleet Map
I think Stravinsky is not far off with his 7m satellite! I saw someplace else that you need a 3.5m dish to pick it up from the north of Egypt and so I would imagine 4m minimum for Hurghada.
If you put one of those on your balcony, you're not going to see much of the sun!
Even if Astra isn't feasible, there are definitely other satellites that are aimed towards Egypt.
I am sure that there is a business opportunity selling satellite dishes and boxes to expats in Hurghada if you did some serious research into what's available and how to access it.
Go for it!