No, not really but I have read through a handful of builds.
here's the good news bus doing their flooring
Which is pretty similar to my plan, I found another build that went through pretty much the same process the other day. The only difference is I'm going to use some sort of adhesive caulk/ or paint to lay down the insulation, I'm going to leave a layer of radiant barrier in between, and great stuff the cracks, also i debated a bit but I'm going to use a few screws to mechanically fasten the plywood and insulation into the bus. How? I am not sure, I kind of like the idea of laying down 2x2's along the edges of the bus and drilling them down every 6 inches or foot. I haven't seen anyone else do it but it seems handy to have some wood along the edges I can feel comfortable bolting stuff to. I know many here argue against mechanical fastening due to poor insulating, but since I already don't know what I'm doing I'd like to lesson the chance of structural compromise. Also I'll still have vinyl flooring between the subfloor and me anyway.
I am definitely getting close, but I also decided I want to lay down my shower pan before the flooring so I get an extra inch of head space. I'm hoping to have the sub floor laid down by the end of the July. But maybe beforehand I'll skin a few more windows, install a few rv windows, install roof vents. I hope my ramblings help a bit.