Submit Form Clicks Buy Now Button

My ecommerce store is only selling 1 item at a time and I would like to take the customer directly to the checkout page with 1 item once they submit a form that I created on the product page. I am thinking to use jQuery to make the submit button trigger a click on a hidden “Buy Now” button but am not having any luck and I’m guessing I just can’t get the code right. Any better ideas of how to do this or help getting my code correct would be greatly appreciated!

Read only link:
https://preview.webflow.com/preview/yoptimize?utm_medium=preview_link&utm_source=designer&utm_content=yoptimize&preview=3d1b3409452fad33d2f4c3aa6bf7c316&pageId=62b2058d09d7a46fc0fd7991&itemId=62b20656d05b9c18568f6a21&workflow=preview

If the url to the checkout page is always the same, you could use Integromat/Make to capture a button click on your Webflow ecomm site, and then reply by telling the web browser to redirect to that url.