Customise a Premium Marketplace theme

I want the main menu options configured on the home (like attachment 2) Products - Services - Shops- Deals of the Day. So that when sellers open their shops they are given option to link their shop to the menu tab and when they upload their products they link their products to the product menu tab. All products categories are already typed out and in the dashboard. I have the Dokan Membership subscription plugin. It has been already installed and subscriptions set out, however when sellers buy their subscriptions I want them to be able to set up shop exactly like the [login to view URL] I think I will need some custom coding to get the services tab functioning the way I want. As I want for people who are offering services to be offer their service through the site and add to cart. This function might be achievable through the Dokan membership plugin not sure how to configure if it is. My site theme is [login to view URL] Overall I need my site looking professional and ready to launch, which it is currently not. It is displaying to much text. DESCRIPTION OF REQUIREMENTS/FEATURES Sign in form ( Customers can sign in to see orders and previous orders, Sellers can also sign in to their stores here) Register (Customers can register their details on the site) Create your Store - Click Here. ( This needs to be activated to go signup process, buy your subscription then taken through to set up your store like the Dokan Preview Sample. All need to be connected to site account to collect money.) Main Menu Tabs - Products, Services, Shops, Deals of Day. Need to be displayed on Main menu. for example- when customers click shop they are taken to all the different shops. When customers click products, then specifiy category all products in that category are displayed. etc etc. Shopping Cart to be configured that buyers can buy from different sellers and pay them all at once. Function for customers to favourite their best stores or products. The site in question is [login to view URL]