That exact wonder bar and hammer were responsible for 90% of the demolition involved for our new kitchen.

"are you going to glass in a new sub-floor or just leave it as is?"

As is. I don't like unknowns, surprises or nether regions. I envision some sort of insert to keep my tank level and that's it. Also, there is a drain, but it in an awkward place that you can't inspect or reach when the engine is in the well. I'm not sure where or what, but a new drain of some sort is in order.