Congrats on the new machine.
Haven't read through the entire thread, but if you haven't yet gotten this suggestion, here it is:
When I moved up to a folding ROPS that was too tall for my garage door opening from a lower fixed ROPS, I got into the habit of putting an orange cone at the doorway after pulling out to put the ROPS up. I figured if I missed the orange cone when putting the tractor back in the garage, I had no business driving anything. If you're that worried about forgetting the orange cone, stick it on the tractor when you park at the end of the day.
I no longer need the orange cone, as it is now a habit to stop to put the ROPS down before entering the garage, but the cone stopped me a number of times from running into the doorway the first couple months of ownership.