One thing I hadn't thought of before is an issue of licensing. This is a Hollywood movie, so they're not just going to let anyone market a product that is ultimately their trademark. Any company wishing to make custom decals for themselves would be fine, but if they tried to sell them it would become a potential copyright infringement case pretty quickly.
Well, there's a problem.
I completely forgot about the copyright stuff and legal stuff that companies would have to go through to get the rights to even think about making a model/ decals.
Now, keeping that in mind, I think any kind of decal run is out of the question, unless demand stays up for AWVR 777, and the other road numbers (although there is still some hope that Athern may do a run of the AC 44000s)
I think that gives me the answer: invest in good decal-making software, and make my own decals for my own use.