BINGO!
Rauville nailed this one! he/she gets a gold star!
Nice that OP is going to re-purpose this cabinet for everyday use, sideboard found a way to survive another day, everyone wins! In my experience, even with 300 year old pieces, the key to survival is, it MUST be a working piece (unless in a museum) that is still useful around the house, otherwise the chances of survival go way down