If your currency is not listed then it is likely not supported by PayPal which is the default payment gateway. You can however, purchase
other payment gateway plugins from the AppThemes marketplace and some of those will offer support for other countries/currencies. Yes the theme has US states listed by default, but the "State" title and field values can be easily updated from within the ClassiPress admin dashboard to your relevant country. Yes you can remove countries and have only those you wish to use, these are customizable fields. Thanks.