Great work David ! That is for sure the right way to go here
Don't forget that you could also share the VCE or an output VCL file of the entire project and they can use the entire model in the Core Version at no charge. You could give them a reduced Menu Ribbon with just those functions enabled that they need. You could also use the Preset Views function to create a set of View Filters that they can preview when they have the entire Project.
Alan