Yes, you can definitely set the currency symbol from within the ClassiPress admin dashboard
here. Also, you can easily edit the field values of the custom fields, for example "State" you could edit the title to "Town" if you wish, and replace all the default US states with those locations relevant to your country. The specific section of the admin dashboard you would edit is
here, with some further information regarding Custom forms and fields explained in our
documentation (including video). Thanks.