Opencart product page customization

Here the link of my site([login to view URL]). We need the following changes in productpage. 1. Product title and short description as [login to view URL] Exactly the same as there. The options and texts should all later be optional. From backend for example I can add thickness and choose for each carpet what is the thickness. 2. Some extra info like free delivery from [login to view URL] this texts should also be optional and chooseable for each product. For example I can later say free delivery , and then in product above 250 $ I can choose this option. 3. Related sizes. Same layout as: [login to view URL] 4. Pictures’ same layout as [login to view URL] 5. Description in the same place as shown in the picture. 6. I need also a slider for the images like [login to view URL] but in carpetvista is the main image not included on the slider. I need a slider like carpetvista that the main image is also included and the slider size doesn’t change when you slide the images. When you click on main image of carpetcita you hover with the mouse on image then you have a lens. I need also the same but optional that I later can enable and disable for each image.