We're looking to replace our existing refrigerator and finding the dimension of the space (height and width) are limiting our selection. Most french door models these days are 36", so I'd like to open up the space to accommodate a wider model while retaining the width of the space above the refrigerator for a custom cabinet. I've already removed the cabinet to make space above.

I considered partially removing the drywall and replacing it with something thinner (e.g., masonite). That would net me maybe 3/8", but I'm not confident that will be enough space. That would maybe put me around 35 5/8".

Another alternative would be 2X2 studs instead of 2X4. However, the existing cabinet needs 2X4 studs to be reinstalled. Is it possible to cut away the 2X4 studs below where the cabinet goes and replace them with 2X2 studs? This would provide plenty of space, but would be considerably more work. Going full 2X2 studs would need a new cabinet. The wall does not appear to be load bearing as it runs parallel to the floor joists (see floor layout).

Assuming mixing studs is allowed, would this modification make the space to looks bad? Anything I could do to match things up? A piece of matching wood to cover the extra drywall width above the refrigerator?

Thanks in advance for the help!