You post made me LOL and I can use every laugh I can find. It is so you and know you are loved and so generous to be hosting this thread. You are so suited to it.
Now if I had a greenhouse (no bitterness there) I would go for inexpensive shelving and thought of old oven racks. Stainless steel and they would let maximum light through. I definitely go vertical in a small greenhouse. You would just need a framework to hold the shelves and hopefully move them around height wise. Looked at all your links, nothing jumped out for me. Have fun.
I have awesome shelving in the greenhouse, already. Beau had scavenged some metal ‘catwalk’ from a project, and it is aluminum and lightweight and lets light and water through. It works great. the shelving is balanced on cinder blocks - also salvaged. ;)
My problem is I have a 10 pound sack with 50 pounds of JUNK in it, LOL!
I like the idea of having specific ZONES - a storage zone, a soil zone, a workspace zone and then the majority of the space where the plants grow. My greenhouse is only 8x10’ so not big at all, but I want to maximize the space - I am doing a lousy job at it right now! To my own shame, I did not use it at ALL into the Fall - I was so disgusted with the whole growing season and all the rain that frankly, I just gave up!
And also - vertical wasted space - you’re right! I already asked Beau if he would hang a rod from one end of the greenhouse to the other so I could hang unused planting baskets and my wicker gathering baskets UP THERE, instead of them taking up precious real estate, below. I’m short - I can easily walk under anything that hangs overhead. :)
I’ve already got a legal pad filled. I think this SUNNY DAY with temps in the 30’s and melting snow is the tonic I needed! :)
P.S. Beau has returned from chainsaw work - he still has all of his own ‘limbs’ so it really HAS been a Good Day! :)