@djh OK, this is what I got after sending your model to LayOut. I only did the one scene but rendering as Hybrid was almost instantaneous. I set Line Scale for the viewport to 2 pt and used A0 paper to make it large.
https://www.dropbox.com/scl/fi/kzpt1in2jl12y9ifeq6y5/DJH.pdf?rlkey=bht6vawz32jzi7ggrgtzf2cpt&st=0mey22sa&dl=0
I do see incorrect tag usage and some unused content that could be purged. Most of the textures in your model are not very high resolution. At 1000 dpi, the "Sketchy Siding Scale" should be 0.25 cm wide.
The largest texture in the model is for the cover of a book and that book's spine is all that is visible. I don't really think that most of your textures will hold up if printed at 1000 dpi
If this SketchUp file is causing LayOut 2024 to run slowly on your machine, I'd suggest it's time to upgrade the machine.