Great progress! Looks like you have a good, large garage to work in also. I have an Ariel and am also looking at putting in a door to the V-birth, head area. I take out a lot of couples and the head issue is always ... well an issue. currently I have a port-a-potty with no door. Before this spring I hope to put in a door... I'm thinking about a "vented" door that swings into the main cabin. Maybe a 6" opening at the top and bottom (a little more than a half door) for ventilation. Has anyone had any luck with this?