Don't cut up your galley.
Don't listen to anyone who hasn't removed the galley already. Do not use a sawzal, the galley is screwed in as Shipwreck said, & not glassed in. But you can replace the formica pattern on the counter without tearing out the whole galley. You only have to remove the perimeter bullwark / teak edge to access the counter. If you rough sand the formica to give it some tooth for the new formica, then you can contact cement new formica directly to the old. As far as the fridge, my P.O. already removed our stove & replaced it with a small fridge. No modifications of the galley are necessary. The only thing you need is to reuse the gimbals of the stove to give you some hardware to hold the fridge in place.
Our P.O. also installed at lock / clasp on the door which is a good idea if its front loading. The door has a tendency to swing open & dump out everything if she's healing to starboard. My advice is to remove an alter no more then necessary. Its easier on your time, wallet & retains the value of the boat when you go to sell it. That said I kinda wish we still had the original stove for our boat. Don't toss it as its expensive to replace,
& it give the future owner options.
for removing screws and disconnecting hoses inside the cabinet.
