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Can I randomise gated content available to each user?

I am in the process of creating an e-commerce website in Webflow.
Front end is all set up but now I need to figure a way of installing the back end and I am wondering if-

Here’s a scenario: My customers will select personality triggered answers through a questionnaire, by combining the results the customer is then selected a certain product tailored to their selections. All products are pre-made PDF downloads. Once all questions are answered they will then meet the payment gateway. Once payment is complete they will be re-directed to a page with their product on.

Can this be created using rules via Zapier? If not how would I go about creating this?

Thanks, Ryan