In the meantime, it's a couple of degrees cooler today and cooling just slightly here in Fernley, although still unpleasant in the direct sunlight. Lisa moved one of the insulation pieces that we were using last year to seal the south (unheated) end of the house over to the living room to partially cover the windows. Basically the only fully-inhabitable room in the house is the living room and that state of affairs will continue until we can scratch up at least $5K.
Yes, I reckon we could probably afford the repairs sooner if we'd skipped Westercon (except we needed to get Lisa's stuff from Oregon anyway) and if we didn't go to Worldcon. It's a tough call.