Return completed document to an existing deal from pipedrive

I've been using typeform for a while now. But I am considering looking for an alternative. I have the problem that the Typeform and Pipedrive integration is not very good.

Here is my desired situation. I'm willing to give a reward for this.

I create a deal in Pipedrive.
This contains master data of the customer.
When the customer has approved the quotation, a project is automatically created.
When the deal is won or a project is created, I have an automation that sends pipedrive an email with information and a link to the typeform form.

I would like fields to be auto-populated in this form when the customer opens it.

But now the most important:

When the customer fills out the form, I would like the deal or project to be completed with details from the form. But also that the form is linked to the deal / project as an attachment.

I can't figure it out via zapier and the direct integration.

Who o Who can help me?