I'm very glad to hear on the spray foam insulation. There have been some nightmares reported in the press. I considered at one time, purchasing 20ft shipping containers and converting them into college apartment housing. Spray foam, mini-split, on-demand hot water, low voltage LED lighting, train-style birth over breakfast booth seating. I'm a mechanical designer by trade... spent many hours dreaming of this thing. Seriously worried about spray foam at the time... my renters living in a tin can slowly being poisoned by leached chemical odor.
Otherwise, it's an excellent way to insulate and prevent condensation on interior walls!
...and then there's my bedding. 8-/
I hope the smell goes away soon.