@nicolaus
Love your vision here. Will definitely pass it along to independent creative friends of mine.
You've got a great question...I don't have as much experience with products as services but I know production costs can WIDELY vary. Trying to standardize those rates makes sense if you are able to set up similar costing at a similar quality as someone else with transparent pricing.
I think what might help more for products is providing inputs on costs (material, time, labor, etc.) and an estimation for price based on that. Might get pretty hairy though