C130 is a slow aircraft and doubtful if a RR Trent in full serviceable config would fit in the Herc. Smaller Russian types can be more expensive and wouldnt get US/UK traffic rights for this flight. You mean an IL76. Might not even be loadable in this either depending on engine dims.
NewForest - how did you know about the price? Must be aroundtrip at that.
Who arranges a charter like this, is it done airline to airline or with a broker?
Interesting one for the LHR movements log, not too many 124s come to here.