Wow OK so that was a good, quick resolution.
As per advice above, she was not far from the tank. She'd managed to wedge herself in between a composite wood board and a book shelf. Like 3 feet away.
Funny thing is I started taking apart the room in the other direction first so I already made a mess. But I can't complain!
When I took the piece of wood she was draped over out she freaked but immediately balled up in my hands for warmth/darkness, which was really adorable.
She's back in the enclosure, and the hole is SOLIDLY plugged.
I will never underestimate her again!
Anything special I should do for her? I made sure the heat is all on in her tank but it lost a bit of heat itself when I opened it up taking everything out. She may have a couple of minor scraped scales from her adventure.
Again, I cannot thank you guys enough for the advice. Seriously calmed me down and got me approaching the situation logically. This forum is great!