Looks like a closet that grow box is in? If you can get by as far as any stealth you might need, just take her out and go straight into the closet.
I have grown in closets before, and it worked pretty good, if the closet rod is secure, it works great for hanging your light, for a while anyway, and the off white paint in there reflects light surprisingly well.
Not as good as the grow tent is gonna be, but will get you by till your tent arrives.
Be sure to get some type of drip pan under the plant!