Adobe Stock API

Hi

I have quite a few questions. Any answers would be greatly appreciated

I am setting up a wall decal website and want users to be able to choose from Adobe Stock images

• Has anyone had experience setting up a similar type of website?
• Is it difficult to integrate the Adobe Stock API into my website so customers can make a search of Adobe Stock images
• What are the costs involved? Is the cost structure different from the normal standard/extended license
• Do I only get charged if the customer makes a purchase?
• Once an extended license has been purchased for an image can future customers use the design without charge?
• Is their a customer support number specifically for Adobe Stock so I can speak to someone in person?

Thanks