Man you sound pretty messed up. Gas leaks are nothing to play around with. You should be calling the gas company as they do not charge for coming out and stopping the leak. I would think the only time you would have to be worried is if your furnace was beyond repair but that usually isn't the case as most furnace are pretty durable, especially the older ones. Mine is ancient, or I should say both of them as it is a duplex, out of twenty nine years I've had two service calls, one on each. That's pretty good considering when I owned my own business for ten years I had a newer one and had two service calls within those ten years.

Your pictures are sideways, lol, usually there is a rotate tab that will turn them right side up...but maybe it's just you are foggy from your experience still.