1. always claim full cost
2. shipping Can Post-USA postal service with expedited service ie; 5 business days cost a fraction more but it covers the border-brokerage fees and will go through easier and faster.
3. insure for actual cost.
4. pack well with no or little movement inside the box. put actual size and weight on box for shipping info.
5 if used state used.
do that an you will have very few issues.