My way of thinking has always been; to make something easy to get to, expose it as much as possible.
Disconnect thr airbox from the fender cup, then loosen the clamp where the accordian tube meets the TB. Pull out the two smaller tubes connected to the accordian tube, and remove the small clamp at the service end of the larger tube. Now remove the entire airbox and accordian tube assembly.
Now you will be able to have a clear shot at the PCV valve, it basically rests in the lower part of the hose, and has a 90 degree angle top, attched to the hupper hose.
Personally, I recommend getting a small hose clamp when you buy the new PCV valve. For some reason, I have yet to see a PCV valve (motorcraft included) fit snuggly into the lower tube. When I did mine, the stock PCV valve was snug in the lower hose, holding it in place. But the new motorcraft one sat in there with a ton of play, and I was afraid it would fall out. So I used a small hose clamp just to be sure.