I live in Papua New Guinea in an old log cabin that was built with non-uniform logs and the old chinking (made with sand, lime, etc) is falling out and in the highlands of PNG it gets cold. We don’t have many urban areas in this country and none that would carry the kind of chinking mixture that we need. We could have things sent from Cairns Australia. Lots of chinking needs to be replaced, can you advise us? Thanks,Beth (Working with Wycliffe Bible Translators in PNG)