afastcar if your still around and see this, contact Michael Yon he is a war correspondent, been to more than 80 countries, he spends lots of time in local libraries reading OLD BOOKS. He has quite a collection. I bet he can provide tips to locating rare books. Walk into a library located in a 3rd world country, offer to buy books no one ever reads. Inspect the building before entering and observe the condition of the building inside, look for deficiencies, use for a bargaining chip. "Looks like your going to need a roof soon, maybe we can make a deal"
https://duckduckgo.com/?q=Michael+Yon&t=brave&ia=webI keep tabs on him for what is really happening in the world. He predicted the blowing up of the Nordstream pipeline long before anyone else realized it was a target, he even pinpointed where it would be blown up on a map. He has increditable foresight.
https://michaelyon.com/https://en.wikipedia.org/wiki/Michael_Yon