Check the carrier's packaging requirements for insurance - and follow them to the letter.
F'rinstance, here are suggestions from the UPS site, found at:
http://www.ups.com/content/us/en/res...reventing.html
Help prevent package damage or loss
1. Use a box strong enough to support the weight of the contents
2. Ship cases in corrugated shipping containers
3. Securely seal contents at risk from leakage
4. Use at least two inches of appropriate cushioning material to protect items from each other and the corners, sides, top, and bottom of the box
5. Reinforce package edges to protect from bending
6. Securely seal package closures and seams with reinforced tape
7. Include complete address information and telephone numbers on the label
On that same page:
How to determine if the box is strong enough to support the weight of the contents:
UPS recommends choosing a box strength that is suitable for its contents based on the UPS Box Strength Guidelines. Never exceed the maximum gross weight limit for the box, which is printed on the Box Maker's Certificate on the bottom flap of most boxes. After years of testing and analysis, engineers at the UPS Professional Services Package Lab have developed box strength specifications for single-package distribution.
About the handles - no, don't expose them.