Oops, maybe I should be serious in my posts. The floor in the engine house is all wood sitting on some substantial floor joists and each bay had a pit between the rails that was subsequently filled in with flooring. It would take a major rebuild to lower the floor. These doors fit the SN engines easily, but it would take some serious work to bebuild the door(s) for a K-37. A lot of that is falling apart anyway, so it may not be out of reach. The only non-wood flooring in the engine house is a patch of concrete that the vertical boiler sits on. And yes, that is still there as well as part of the overhead shafting system used to power the machine shop equipment. The equipment is gone as well as the engine that provided the movement for the shafting.