Thank you for reaching out for assistance in your efforts to craft a Statement of Work for your supply chain challenge.  

My first bit of help is to direct you to our DAU Services Acquition Mall - will all sorts of help for your specific needs:

https://www.dau.edu/tools/Documents/SAM/home.html

Within this area you will find the ARRT tool:

https://www.dau.edu/tools/Documents/SAM/resources/ARRT_Home.html

This will help you craft your higher-level and lower-level performance work statements to put in your SOW.