This is just a guess.
I don't think there's going to be any muscling this around or moving it with prybars or etc. It's going to weigh 9000 pounds or so. Realistically I don't think it's going to happen.
But anything's possible, of course. I tried to think of some ways this might be doable. Most of them were way more work than busting up the slab and starting over. One might actually work.
If you put nine 3/8" expansion anchors in the slab, in a 3x3 pattern, put eye bolts in them, and rigged chain sling to a big shackle, set up so they're all under equal tension, and picked it up by the shackle, maybe with an excavator, you could probably get it up off the dirt, spin it, hose down the dirt under it, and lower it.
So yeah probably best to learn to like the angle, or crack it up.