So their first base is to be Accra? Well, beats Lagos - less likely to get mugged / beaten unconscious whilst walking down the street. The locals are friendly, if not tempted to make a quick buck out of you...
Seriously tho' - to operate an African based airline to European standards, you're going to have to alter the whole aviation infrastructure in the countries you are operating in (and then some more!). Nice new shiney aircraft are great, but they still won't make up for often rubbish facilities, poor local operating procedures (particularly with other locally based operators) and the socially ingrained corruption that cascades from the top down.
As for getting crews out there - fair comment by other posters on this - who is going to move their family lock & stock to some of these places? A job is a job, but seriously go and have a look on the ground before you decide to move to the madness...