Thanks for the thread, and coming back and posting you solution! Basic walk through, but all that is needed. I did this without any hiccups following your directions.

One thing I'll say is to remove the shroud around the steering column AFTER you remove the steering wheel.... with the battery disconnected, it's an unnecessary pain to turn and hold the wheel to remove the 3 screws that hold the shroud in.

To my belief I bought an OEM clock spring off Ebay ($40), however I noticed that the OEM one has a yellow tag around it, where as my replacement one has a green tag(see below)? Either way if it becomes a problem, its a simple enough job to replace again and I'll get one from Toyota directly if the need ever arises.