Ana White Greenhouse Plans

I'm 68 yo woman and started this project two years ago, then had to have major back surgery. I was able to finish the greenhouse this year. I built it from Ana White's greenhouse plans, but ran my polycarbonate panels vertical instead of horizontal as she did. It was a lot more work, but I plan to add gutters and collect water into the rain barrels I have acquired. Inside, I have two levels of shelving with one 10' across the back, another on the side 8', and on the other side 6'. I also purchased 6 mil plastic and lined the inside as well as along the bottom, behind the metal sides I have R 28 John Mansville (?) insulation. I've ran the electric to the greenhouse and didn't think about putting the electric in before hanging the plastic, so that will be a partial redo. LOL I'm also running 2" pvc piping under each top shelving, wrapped with roof heat tape to heat water as an alternative method to keep the dahlia tubers at an adequate temperature and to transfer seedlings from the shed to the right into the greenhouse as they grow bigger. This is my retirement venture of growing dahlias as a side business and I've spent a lot of money getting the system in place and hope to start selling tubers in the spring. I really enjoy building things. In front of the seedling building is wisteria plants, and to the left of the greenhouse I plan to put up another vining plant with fragrance. Behind the greenhouse, I have the metal frame of a 6 x 8 greenhouse that took a beating from the wind and that's how I know about the metal greenhouses and how they hold up. I plan to cover that in hardware cloth and that's where I'll grow my vegetables. I have a ton of squirrels and other wild life that would love to snack on my vegetables. I placed the greenhouse on a wood platform using Tuff Blocs because I can not carry 60# bags of concrete. I have a slope from the side of my house to the other side difference of about 2 feet. I also have a ton of rain in the spring and fall and whenever it decides to rain that comes down off the hill and gushes right through the area where the greenhouse and shed sit and would have flooded the greenhouse had I attempted to grow inside of it and dug into the slop of the yard. I also have a humidity and heat controlled fan at the back that I can control from my phone. Stairs are not my friend, so I have to figure out how to do everything to accommodate my physical disability.