NEVER PAY FOR TRAINING

If you're holding a commercial certificate, you have the required training on your part. I think you have it quite wrong on your "good business plan". Reputable flight departments don't require you paying for your type.

If they can't afford to train you, how can they afford the jet?
Why are they requiring to pay up front?
Can they not keep people there?
If that's the case, why would you want to work there?
If they're cutting corners on training, what other corners are being cut?

If it were a place with competative pay and work conditions they wouldn't have problems with people leaving after getting typed.