Looking for Communication Plan for new Gainsight Implementation

Does anyone have a communication plan format they like?  We're implementing Gainsight for the first time and I want to ensure we have the highest adoption possible and that the project has visibility across the company.  For example, audience, purpose, frequency, method, description - include project updates in the monthly internal company newsletter, provide project updates and demos in CS team meetings and other communications at least 1x/month to make sure the rest of the CS team and other users are onboard and feel like they have a say.  Thank you!