the currency thing is less relevant to your one off order, but for ongoing business, this can be important to avoid being burned by currency fluctuations.and 6 meters of cloth is a lot. probably 2kg + (4.5pounds for you)
the dovetail heel was an option. an extra $35 so i passed. no i didnt ask about the last, but as it wasnt on the last for too long (the turn around on the shoes was only a few days) i didnt think it wouldnt have a lasting (no pun) impact.