Hi again Heather! I'm so glad you found my last answer helpful, and thanks for visiting me again at the Moms Panel! The
Hoop-Dee-Doo Revue is a favorite among the Moms Panelists -- you're not going to be able to stop laughing! The best way to get there from the Port Orleans Riverside is to take a bus to the Magic Kingdom, and then hop on a boat to the Fort Wilderness Resort. The boat drops you off a short walk from Pioneer Hall, where the Hoop-Dee-Doo is held. Just reverse the route to head back to the Port Orleans. The trip will probably take 45 minutes to an hour.
I know you mentioned you might have your car with you, and if you do decide to drive to the Fort Wilderness, know that you'll have to park your car and then take an internal bus to Pioneer Hall for the Hoop-Dee-Doo. The drive itself will take only about ten minutes, but be sure to allot another 20 minutes or so for the internal bus ride. (The internal ride is not that long, but you may need to wait a bit for a bus.)
Hope this helps, Heather! Come see me again if you have more questions!