Many years ago, my Father-In-Law bought a house with plywood kitchen cabinets. The doors were plywood and the cabinet carcasses were plywood (not veneered, just plain common plywood. He removed the doors and hardware. He then veneered the cabinets with a good quality hardwood veneer. He replaced the plain, ugly plywood doors and drawer fronts with solid wood to match the veneer he applied to the cabinets. He shopped around and found unfinished doors at a salvage type facility. He made drawer fronts to match the molding on the doors. Lots of work, but minimal $$$, and the finished project looked like new cabinetry. Your doors look to be in good condition, so maybe a trip to a commercial stripper shop and they could be stained and varnished to match a new look.
The Nut in the Cellar
I've gone out to find myself. If I return before I get back, have me wait for me. "Sawdust is Man Glitter"