I know nothing of this particular dispute but since this is an open forum and the matter is being discussed in public, I would like to make a couple of comments.
It has been my experience in the past that having to wet-lease aircraft and crews is actually a good thing in the end. The fact that the management is having to spend an arm and a leg to keep going is likely to make them more interested in getting back to the negotiating table.
I have in the past and from time to time still do some flights which are rostered to the CAA minimum rest period of 11 hours. This is based on 10 hours in the hotel (8 hours kip and 1 hour either side of this for other matters). No allowance is made for Guinness time, shopping time or socialising time. Now I would not like to do this 5 days a week but if it is truly a flight safety hazard then why does the CAA allow the practice?
If you want your dispute to succeed then you simply have to get the public on your side. The truth is usually an early casualty in a dispute and it is perception that counts. In the SABENA dispute, whole sections of the community perceived them as being well-paid and privileged and were sick to death with the perception that lots of their tax contributions were going to waste. You simply have to have them on your side if you are going to win.
Finally, always remember that there is always someone out there prepared to do your job for less money and worse terms than you despite the presence of such august bodies as IFALPA etc etc. I well remember catching an (AA) flight out of Denver back in the 80s and seeing CO pilots on a picket line. Apparently they had been there for months. Strolling round either side of them were the replacement CO pilots. I thought it was a sad sad sight.
Good luck but be careful you don't overdo it!