Team Swapped Picks
I think a better solution would be to update the Swap Picks mod to work with teams / more players? I'll have to discuss that with Fizz and the mod creator I think...
Modded Airlift Card
As @M. Poireau pointed out, there is already a mod for this. The Late Airlift mod catches all airlift orders and plays it at the end of the turn. If either territory is lost, the airlift is simply skipped.
Indeed, with some other mods the mod might do some funny, non-intended things, but the mod itself is great!