I would just macgyver it. lol
It will help a lot in your setup. You are running a risk of over vegging.
Go to your local store.
Buy a bakers cooling rack. (cookie cooling rack)
Get some wire cutters.
Expand the holes.
Mount it in the box, glue it to the inside, build a...
Worst comes to worst super crop the stem at the blue line (gently and slowly).
Put the plant all the way to the left, with the Super Cropped stem bending to the Right
Net it and force it to grow to the right while flowering.
Plants Over Vegged After 20 Day Work Trip.
Plants after Training Into Net, Same Day.
I am flowering now it is going fine. I would upload a photo now but don't want to disturb their sleep.
When the proper netting is in place the plant does not double in height it is trained to grow horizontally.
With trimming of leaves and the development of a top canopy vertical growth can be controlled, and bud sites can be maximized.
You are doing fine.
Here is a link to a nicest Stealth Grow I have ever seen. Amazing little setup. If I did stealth I would copy this.
It is a SCROG setup. The net is essential in small spaces, to maximize yields. It is like 50+ pages but worth the time.
Scroll the bottom and click on the thread here to see the...