I have been in the cabinet business for 30+ years. Skip the designer! Call a cabinet shop! This is what they do!
You have frameless cabinets that need some repairs and refacing on some edges and ends. They can build any you want to add too.If they can't match the door exactly then change them all out.There are some places that sell glazed thermofoil doors that look pretty awesome.
I have had good luck with this company but your local shop may have their own source depending on what you get.
If you go with the glazed doors make sure they change the crown to glazed too.
On edit: DO NOT try and paint them.The paint won't stick.