Window Framing + Trim

This one I kicked down the road forever, figuring I'll solve it "someday" and building away on the utility cabinets with a blind eye.

Gotta pay the piper at some point. Roughly the ugly starting point above.

What can I possibly anchor any window trim framing to? It's just a huge void area, mostly filled with 2 or 3 layers of thinsulate. The lower window edge framing would be just hanging in space.

As I embarked on the wall panels, a plan came together. I had saved a whole row of rivnuts for the top edge of the wall panels to secure into. But the future bottom anchor was still unsolved.

I considered just taking blocks of hardwood and gluing them to the van outer wall in various points as a solid structure to anchor against.

But then the rewards of an 8020 build came and I added some vertical bracing chunks that the panel can rest against and be secured with t-nuts and screws. You can see them in the above picture in lower left and right corners of the window.

The 'interstitial' space between the finished wall panel and the squirrelly shaped van wall is a nightmare. Used pink XPS foam of all things to bridge the gap since it's not structural or weight bearing. Was originally thinking of the popular 'oval-ish rectangle' look, but the dimensions just didn't cater to that. The window shade frame is rectangular anyway so just gave up on that idea. There is no 'top edge' to the frame - the landau foam and fabric is right on the sloped van wall. The filler side pieces are glued to the wall and window frame "forever". The bottom filler piece had to be floating so that when I need to remove the panel, I could remove the bottom filler and still reach behind the panel for utility cabinet maintenance.

The XPS foam upholstered in various ways gave me all the flexibility. Lots of filler pieces in spots to get things flush and semi-sane. Have no idea how this would have worked with real wood.

Victory declared:

The black shade + screen for the Arctic Tern windows needs a bit of vertical up/down room to add or remove. So the vertical space above/below the window is by design.

I added high power USB-C 2 port outlets on each side of the bed. Those are the black circles in the middle of the panel.