Re: Would you do this???
It depends on what you need. I know you said he's first base eligible, but who do you have, if anybody, who plays first base? If you have no glaring needs, it's always been my philosophy to get the best available player, because they do well in trades. If he's the best player, I say go for it.
If you can't build a winning team with that core a fire-sale isn't the solution. Selling the franchise, moving them to Nashville and converting GABP into a used car lot is.