i can't recall any Opel model in Egypt with a 2.2 engine... i recon you will have to import that from somewhere outside the country which will cost some horrable price (shipping and customs)... not to mention that it will be near impossible to find parts for that engine as their aren't any in the country.
i recommend a 2.0 DOHC engine from a Leganza... Daewoo engines are sheap here and spare parts are available everywhere, it is even better than the 2.0 on the Opel Vectra as that engine is a 2.0 SOHC.
keep us posted with what you do and good luck bro.