Hello all!

Im a military member finally coming back to the states and shipping my molds and plugs ahead of me. Im having a hell of a time appraising my plugs. (tax or insurance purposes) Can you give me advice on this? for example, if my end item is around 5 thousand, and  molds make multiple end items, plugs make multiple molds, would I try to make an appraisal based on reverse multiples?
Perhaps you can point me to somewhere that highlights industry standard practices for appraising plugs and molds.
 any advice would be greatly appreciated
Ajawan