Finding a reliable drop shipper can be difficult! What I do and suggest try is to initially have the item shipped to you and then you reship to your customer. This way you can see the product, see how it's packaged, etc. Once you've satisfied yourself that everything seems fine, have the products drop shipped. Another method I've used is having the item drop shipped to someone I know. For example, I bought a watch from a supplier and had it drop shipped to my son who lives in another state.
Good Luck!