Thank you for reminding me to go back and investigate the software you recommend in that post. CompanionLink does look to be a better (read: less convoluted) solution, and I may well purchase it after playing with the free, Rube Goldberg solution a bit longer.

In the past I've found GPE Calendar to be unusably clunky, so I don't want to spend even the small cost of CompanionLink on this experiment until I'm sure I'm not just going to uninstall GPE again.