I think you can ask your questions to BTC ATM's producers;

https://bitcoinatm.com/
http://www.generalbytes.com/
https://bitaccessbtm.com/
https://lamassu.is/
http://www.coinsource.net/


Or you can find all manufacturers from here;
https://coinatmradar.com/manufacturers/

Also you may find some key information from here;

https://coinatmradar.com/blog/how-to-start-a-bitcoin-atm-business/