I can answer Question 4.

I run an Aquaponic system in the basement. Should you select a plant that needs to be pollinated you have a couple of choices. Use wind currents (fans) or hand pollinate. I know that these 2 methods work for certain plants. Peppers self pollinate nothing is needing to be done and I have about 10 Anaheim and 8 Jalapeno's wanting to be picked right now.