I'll open up the console and start the last quest in the main storyline to post the ending on Beth forums and youtube. Then I'll go into the construction set, find where they hid all the goodies, and post that too.
I like your thinking haha.
For me, I'll do as I usually do and just start trecking in the opposite direction I'm supposed to. Avoid the main quest for as long as I can, explore. Also, to the looks of it, it seems there are a lot of caverns in the screenshot posted yesterday hidden around the surrounding cave on ledges. Bottom left, top, etc. Wonder if we'll be able to go inside there? I would assume so. That's where I'll be once I get there haha.
Oh and Spectre IV, your avatar is the bees knees.