Inspirational!
Not to be nosey but are you keeping track of expenses in the build? Without going into what a vehicle cost, disclosure of build costs would give many a much better idea about getting involved in building their own rig. So far I've not seen anyone fill in that gap.
I can understand manufactures not kicking such information out, but individuals I see a bit different, I'd disclose costs even if I intended to sell later on, the costs don't establish the value as there is labor, design and value is added beyond costs of materials.
That plywood looks to be cabinet grade, very nice! She has a nice rack too and great solar. Will there be any space upstairs to sit? I like second story sitting areas, fewer bugs, great space to watch fireworks shows, makes a good deer stand too.