OK - I have been researching this some more since I no here has any experience with some of these questions.
9) What about replacing the combo W/D unit with a stackable unit - is there room for that? You actually need 7" more space either up or down for a stackable W/D - so strike that one off the list.
3) I want to install a tracking TV sat dome, a MotoSat dish, Solar Panels and a Yackama Storage pod (biggest they have) all on the roof - is there enough room? Does anyone see any issues with this? Well, there is plenty of room up there for it all and some more. You just have to be careful with the height and what you drill into! A professional shop that actually knows what they are doing will be installing all of my accessories!
5) Has anyone installed a keypad/keyless entry system on their door? This can be done pretty easily - the company that sell the unit is - 540-0200 Lighted Grab Handle with Keypad (e-GRAB) | TriMark Corporation
I am still anxious to see what Justin does with the space under the bunks!
I actually got to see a 390BH today at THE Rally in Louisville and now I am REALLY sold on this unit - even if you have to stand sideways to shower! lol