Get a Laconico. Contact him directly to see if he has anything he can fit in for you, or browse the Custom Knives for Sale subforum, as they pop up all the time.
They are the best custom folders I've owned. Although Poltergeist Works is pretty darn close, and offers a much larger selection of models. Both makers do virtually everything themselves (Poltergeist makes his own screws even) and the build quality is flawless. You'll spend close to your $750 either way.