Indeed... Can you run an extension cord and fan out there? Might solve the airflow problem.

I could, but that's against everything this grow stands for.
So far it cost me 1 teabag and half a cigarette. (0.1$)

The photo period would benefit greatly from a transplant, and as someone else in the comments mentioned, the added soil will add some nutrients to the expanding root system as well.

okokok. I'll do it. :D

I have some well aged compost in a bag, just sitting there.

sizable stretch may be coming

If it doesn't double in size, it will still be small enough, I guess...