What to do when you don't have a full pit?
When you license a show, you are not required to use all of the orchestration parts. It would be up to your music director to look through the avaialble parts to determin what to use to get the best overall sound from the musicians that you have available to play in the pit. We are not able to grant permission for you to create any new orchestrations or to reorchestrate the show to be played by different instruments that what are provided in teh authorized production materials.
Fortunately, for DISNEY'S THE LITTLE MERMAID, there is an OrchExtra system available. The OrchExtra can be used to suppliment for the players that you do not have avaialble.