Thanks @KillwithKindness @Grant-Fraser @ColeVanD @Nicholas @Bradley-Maker for helping with the windows… We got downstairs almost hacked together with plastic and packing tape. @Bradley-Maker has made one wooden frame and mounted the plastic in a window up in the wood shop… Corey (I don’t think he has a forum handle, but the large red-haired guy who likes to come in and play with dolls…) supplied us with plenty of recycled bed slats to make frames out of, so we can make relatively permanent window insulating units that can be re-used from year to year without incurring expenses for more plastic every year.
We are trying to cut the plastic several inches oversized so as time permits, we can make up frames one window at a time and just pull the plastic down, mount it to the frame and put it back up. Corey says he should be able to supply recycled foam to use to make the frames compliant to seal around the windows well.
Meanwhile I’m frantically google searching to figure out if any types of mattress are made from laser-safe foam So far no good though, memory foam is polyurethane, which outgasses prussic acid (cyanide) We don’t like that in our machines (or lungs) at all.