Freighter Conversions
CR2,
What you mention is exactly what Dragonair are proposing to do at the moment, but with -300s. The sums involved are several times the figures you mention, however.
Whether EAAC decide to try the cargo market is another matter. There are still plenty of -200s in storage, and the aquisition of some of these would seem to be a distinct possibility.
There is undoubtably money to be made out of freight from/to the UK. If AFX can do it, then an outfit with a little organisation (which EAAC now has) might even make a good job of it!