Doubtful. I found this picture on the internet - I've never even been inside the Cat building.I see you are in Mesa. Empire Cat's Mesa headquarters building is in that style. The main reception desk is a 3516 diesel block with a glass top help up by the pistons. The crown moulding is made from bucket teeth. Any connection with your hearth?
lThe roof thing won't work. Obviously, one would have to;
1) tunnel under the house
2) set bucket on furniture dolly and roll to directly under the main floor where you want to place the bucket
3) open up the floor
4) open up the skylight
5) lower the crane's cable down through the house to the bucket
6) secure the cable to the bucket
7) lift the bucket up through the new, soon to be, basement to three feet above the main floor
8) patch the floor
9) lower the bucket slowly to where you want it
10) disconnect and reel in the crane's cable
11) close the skylight, especially if you are expecting rain anytime soon
12) suck down a few Hamms
13) finish out new basement at your leisure
Trust me, I've seen this work several times. If you attempt and run into a problem, jump to step #12.
All large buckets have a weld on edge that can be the anchor for the tooth shanks or for an auxiliary bolt on flat edge that would be used as a ditching bucket. That is the seam you are seeing. That bucket was at the end of it's useful life. It is worn to the point that both the teeth and shanks are in need of replacement and it looks like it has been reinforced on the sides and bottom from being worn out.It looks like it is cut in half behind the teeth area. Then rewelded and grinded down.