Typically I like the largest area I can get for drying. This allows proper circulating and uniform drying. But sometimes you have to use boxes due to space. You would be better off with a cardboard box that uses a small computer fan to bring air in and out. If you are stuck on using this box, you might be best off propping open the top of the box, draping a dark cloth over the top, and opening it up at the bottom at the floor so that there is air exchange but little light leaking in. My favorite way to speed up the drying process is to stick some buds that are too dry in there. This will suck up moisture but in turn also moisten the dry buds and not allow the other buds to dry to quickly. Granted you need some large spare dry buds for this too work...

PS. The longer you cure afterwords, the better your product will taste and smell. 4-5 weeks will make a large difference compared to 2 weeks. You need to watch the humidity when drying or it can get moldy. I tend to stick my buds into jars when they are a little dry. After a day or 2 in the jar, they are nice and fresh feeling again but not wet. Smoke well. You can put em in earlier, but make sure you open the jar and let them breath a couple times a day.