That's a hell of a write up, Swamp. Is there a particular panel that would be appropriate for something like Cash is building?
it depends on his budget and time
Kingspan & MTL Span type of panels are expensive & require a framed shell to install the panels on, are heavy and can't be done solo, but once installed, you have very high R value insulated walls with exterior siding completed at the same time
R-Seal panels are considerably cheaper, very light and extremely simple to install but also require a framed building shell to attach to, then you need to cover with siding, usually light gauge metal siding, these type of panels are ideal for the do-it-yourselfer with limited or no help, the R value is very high and all seams are taped with the included 3M sticky flap on each panel, and rolls of tape are provided, so you get a vapor and water barrier at the same time
the SIP (Structural Insulated Panels) can be assembled as the building frame itself where you get an insulated building when done, will still need to install siding, are costly, can be heavy depending on length/size, would be difficult to work with solo, there are several different types of SIP panels on the market, most need an engineer to draw up building plans in order to build these panels for a Lego block type of installation
