Newscaster,
A nice thought & I think I know where you're coming from however... (rain on parade time!)
If you look at the main cargo operators in BRU (excluding the integrators) you would have serious problems trying to pick up their markets -
Saudi - can't go there without paying royalties therefore you can't better, or even match, their rates;
Air HK - everybody & their brother does HKG, CV, LH, BA etc, etc. Not much chance there;
Asiana, Singapore et all - see comments above;
Forget about Africa, too many cheap operators down there to get any good revenue.
Even if you get around those problems, you've always got the likes of MNG ready to undercut everybody 'cos thy've got lower DOC ex Turkey.
I could go on but I fear that your millons would not last that long. Don't forget the old adage 'How to become a millionaire in aviation - start as a billionaire and..........'
Nice dream!