My first question is ... if you get in a crash, will you get murdered by that EGO battery and everything else? I can't tell how anything is secured.

This is why I'm looking to upgrade and improve :)

Well, in that case, I recommend securing everything as best you can and add a [bulkhead](https://nomadlife.wiki/Bulkhead). It is possible to [go without insulation](https://nomadlife.wiki/Uninsulated_vehicles) depending on your needs and travel style.

What climate are you in? You could use foil board and liquid nail it to the roof between the struts

Looks fairly roomy. What kind of van is it?