I'm going to put two fans in somewhere, both facing opposite directions and situated opposite each other so that there's a nice 'whirlwind' effect of air movement.
I have evolved my plans on the benches. Here's my current thinking:
On the top left is my AQUAPONICS project! How could I forget that? So my fish tank and grow bed setup is right around 4'x4' in size.
Then I've got the benches on the right just like before. I've already set the 6 4x4 posts in concrete and will soon continue the work. I'll take pictures soon.
My dad is in town visiting and he loves the greenhouse. He thought I paid thousands for it and was astounded at how low cost this is. He's now planning on getting one for himself.