Doc,
To give you a reference of the size of the oil cabinet, I think Brad has a 6 foot bed on his truck. We were just barely able to close the tailgate with it loaded. Keep in mind that he has a tool box in there, though... As far as the depth, I'd say it's about 18 inches deep.
It has a couple of shelves in it and it is very heavy. When Brad and I carried it over the 30" walkway (I got to walk backwards), it was a little scary since it was about 20 foot down to the ground if we stepped wrong. The boards in that place were creaky and old. A very large portion of the building had water pouring in through the roof and it was going through the floor to the bottom level in many places. Definitely an accident waiting to happen for the person who steps in the wrong place.
It was a fun day and I was glad we got out of there in one piece and with no need for a tetanus shot.
Mac