Well, just got around to doing it today and it was NOT a fun Sunday.
For the life of me I could not get the plenum out. I removed all the stuff according to the description and the plenum moved about 1/4" up, which does not seem enough to move it forward. As a result, I could not remove the brake booster line at all so I closed everything down.
The only thing I have accomplished was the change of the 3 front plugs and, for good measure, installed a new air filter.
I'm not sure what I screwed up