Mine is very similar except I have simplified watering. I grow in trays with a hole on one corner. I attached a hose to each tray and drain them into a large bucket. I empty the bucket into a sink with a sump pump. Since this picture, I have switched the hose on the top right tray to the opposite side. Looks better now.
As the years creep up on me, I try to make life a bit more easy.
I also grow in my basement, under lights, and have it set up very similar. I looks a bit hodge podge but it works well for me.
My kids and grandkids make fun of it. They say, "leave it to Grandma to figure it out". They also tell their friends that "Grandma grows her orchids in dog food". (S/H expanded clay balls). The only one who doesn't make fun of it is my great grandson. His coment is always, "Grandma-great, you have such beautiful flowers. Who knows, Grandma-great may turn him into an orchid addict some day.