After initial ignition & first heat cycle, gas valve would fail to re-ignite

The good: No need to pull out dryer beyond point where (wall) gas valve could be shut off.
The gotcha: Be sure to wear thick leather gloves to protect your hands. I discovered sharp edges the hard way!
The tip: To loosen gas valve inlet nut and to remove gas pipe from valve, use a bottom-to-top wrench motion. Despite threads being right-handed, this counter-intuitive operation (the thinking is that you are tightening the nut instead of loosening it) is necessary due to nut being located on the valve rather than the gas pipe which reverses the context.
The ending: Wife is happy to be back in the drying business and I'm happy just to have her happy not to mention saving a little $ in the process! Thanks PartSelect.com!!!