Reportedly, Boeing has in fact found buyers for the 'terrible teens' - and several of the "pre-teens' have already been delivered (Boeing wrote off the first three 787s several years ago - they're being gifted to museums). They've been updating the early build 787s at the "Everett Modification Center" or EMD. EMD is the same building where they are doing the KC-46 conversions (it's towards the south end of Paine Field, basically the opposite end as the main Boeing Everett). The early focus was on the slightly later production 787s as they needed less work and could be processed more quickly, then working 'backwards' towards the earlier aircraft that need more work.
Beagle, I've also 'heard' that the 787 is enough of a point design that it wouldn't make a good freighter either - I'm guessing that the main deck floor isn't strong enough and would require a major redesign (and unlike aluminum it's not a matter of simply increasing the gauge), but that's just an educated guess.
Onceapilot, I don't understand the question
