I took one of those cabinets apart a few years ago after it sat in an open shed for 45 years. I have a cabinet that I needed the parts for, and those things are really put together well. It would be almost impossible to put the parts they cut out of there back in without knocking the rest of the case apart. Brunswick must have glued and nailed the whole top part together above the legs pretty much at once. The motor-board in those things runs the entire width of the cabinet and is rabbeted in along with the rest of the stuff they cut out. The old girl is probably a lost cause and it's too bad because it's more than likely the intact cabinet that was on craigslist out there a couple of years ago.
There was one down in Lincoln, NE. not too long ago that they had just recently stripped out and made into a useful "wine cabinet" I emailed them and asked them what they did with the stuff the pulled out of there and she said they tossed it out as nobody could fix those things anyway.
It's amazing how stupid people can be, and have a computer with the internet in the house. And then after they screw something up like that to the point of no return, they end up not liking it anyway. Ha!