New doors to bring life o an old cabinet
That's exactly what I did with one of our vanities, which looked fresh out of about 1970, give or take a few years. It was perfectly functional, but had 3/4" thick surface mounted doors with leuvers the size of what would be on a full size door, and bold brass hinges, causing it to demand the attention of anyone who walked in there. All I did was remove the doors and hinges, plugged the holes, cut out a set of much thinner flush mount doors, probably 3/8" or so, threw on some paint, installed a set of much smaller white hinges (could have used hidden ones except that I these in the shop if I recall correctly), and some small white door knobs with flowers painted on them. It instantly improved the entire room, and we have since received quite a few compliments on our "beautiful country vanity". Not bad for probably $5 in hardware and some leftovers in the shop.