Actually the work and skill that went into picasso is respected a lot. How much would they want to release all picasso sources under the GPL?
Please let me make a couple of statements here:
First, I don't think this forum is the right spot to start negotiations. Yes, I do have contact to the authors, and yes, I know the figure they expect. But please understand that I'm not the right partner to negotiate with, as I have no rights on the actual code. I can at best moderate.
However, if you want to take my personal observations: From what I learned from Alex, I would *personally* consider it unlikely that they are willing to provide P96 under LGPL terms, even if you would want to pay for this right. But that is, as said, my observation, and something you should discuss with them.
I believe you have the email address, but - to be completely frank again - their willingness to talk to the Apollo team given what happened before seems not to be "overly enthusiastic", to put it mildly. I would assume that you - your team - should make some first step, probably to make them understand that you accept their rights.
Anyhow, just my two cents. I am neither with them nor any other party, that's just my opinion and my observation.