Dino foam source(s) needed

I would appreciate if some kind Dinoland inhabitant, would refer me to a supplier of foam, and the kind that is required, as we need to upholster the various Dino panels in my car and the underside of the roof.

Most of my old stuff is ok for template making, only problem, is that the rust has been very unkind even to the interior panels.
Whatever is left, is turning into yellow sawdust, and what has not, it simply is not there.

Thank you.

Regards, Alberto

 

Thank you Scott, I have to do the dash recovering here at home, thus need to find the proper foam from a distributor in the USA and have it sent. If someone has the specs, that would be great. As far as I can tell, the foam is about a 1/4" on the paneling, but ignore what goes on above the headliner now that I have Dynamat installed and that would subtract about an 1/8th. Should it be closed-cell foam?
the foam on the upper door panels seems to be just that.

Regards, Alberto

 

Thank you Dave.

Regards, Alberto