And the customer-what he wants? The cost of development will be very different if all washed down by 100% from scratch.
I think this is a good reason for learning integrtiy with Google Sheets. By the way, "pile up", and the data Analytics service to connect.
I found this integrator services: zapier.com
there is a large selection of services is, in many ways.
I would be grateful for views on its use in WEB development and programming, because it is still hands did not reach.