Just throwing it out there, but I'm not a modder, so I can't tell. Is there any way that a trigger chain could be created for this? It'd be hell on the CPU, but it could feasibly do the job...
- Create resource of fuel
- Duplicate training flag settings, but set it to consume "fuel" resource only
- If "fuel" = 0, set to 0 Org
Off the top of my head, 2 seems the absolute hardest, as I'm not even sure that the training mechanics aren't hardcoded in - but if they are not (and I have been lead to believe that Paradox has been working to expose as much of it as possible), would that be a workable solution?