The answer you seek is at a local cabinet builder. Not a place that sells pre-manufactured cabinets and tries to present themselves as custom cabinet builders, but a place where there is a shop full of noise and dust, and table saws screaming. One of the dirty secrets in the industry is that a significant percentage of the custom builders out there buy their doors, drawers, and similar items already made. In fact there is a factory near me that employs 1100 people. All they do is make doors, and other ready to assemble pieces of custom kitchens, that get sold to custom kitchen builders all over North America. Chances are, a local cabinet guy could find a supplier that makes a match to your doors. He could buy the doors unfinished, build the cabinets, then finish everything to match your existing. Take a small door off one of yours, and take it to a few shops for advice.