I have reviewed both the example and can build a simple website to showcase your digital advertising where the categories menu on the header and a category backend where you can enter products.
And there is a selection of products and also a section where you can put this weeks special deals & you would be be able to enter information and specs on the product section.
As, I do have Expertise with WordPress , PHP , Customisation , API Integration , Plugin. And, I also have designing skills like Website designing , Graphic designing , HTML , CSS , HTML 5 , MySQL with 8+ years of experience.
Kindly initiate the chat for further discussion.
Regards
Mithu