Jim,
I took the advice of many people who told me their greenhouses were too small and they wished they had ordered larger.
I have the GH in the back on the right outside of the driveway which goes around the gazebo. I wanted it to be placed 10 feet from the fence but the delivery people couldn't lift the thing to get it there. We would have required a rather large crane. What I'm saying is the thing is very heavy with all the steel and floor. So, after they munged my lawn up and generally made a mess, I just told them to leave it were it plopped/rolled off the trailer.
Nothing ever goes as planned.
fred