I'd be willing to lead a group of folks down some or all of Oak Creek (it is in 3 sections; upper, middle, and lower, and we can decide how much of it we want to do).
I would say that Oak creek is advanced beginner to intermediate depending on the sections we choose. There is a lot of getting wet so plan accordingly for gear. You'll probably be happiest with a wetsuit and a drytop! We can carpool up to the trailhead and drop a vehicle for shuttle (or walk back up to the cars at the end, it's not super far). The access is up a hiking trail and takes 1-1.5 hours or so depending on which sections of the canyon we choose to do.
I DO NOT HAVE A ROPE! This trip can only happen if someone else is willing to supply the rope (I will double check what length is needed and post that info in the comments later). A rope is on my list of things I want to buy but it hasn't happened yet! But I'll bring some quicklinks and webbing for any anchor repair we need to do.