I'm trying to get some emergency construction work done in another country but their banking system has collapsed and I have no way to wire the money due to the location. I can travel there myself with the cash and oversee the work but I am not sure if it wouldn't be better to just have them immigrate here instead. What should I do? The people I'm helping really want to stay and rebuild and a lot of people gave money to me to help. Is it ok to use cash?