Love this, I think GRU would also greatly benefit from this, having Varig (LOG) or VASP available. This might just be me, but I would even be willing to pay cash for this, if it was something like 10 - 15 € per airport as a sort of “legacy carriers DLC”, I’d definitely buy it at least for LHR, IAD and GRU, maybe SYD to get Ansett.
I suggested adding older contracts without the paywall earlier:
…but if a payment in GP/cash is necessary to make this feasible for the devs to consider, I’m all for it. It would make even more sense if and when more historic aircraft types such as B707, DC-8, DC-10 or L-1011 are added (presumably with Kai Tak). They could still arrive as events, making them available for free occasionally, but I would definitely appreciate an option to make them regular.