Need a furniture store to be setup and add collections and navigation menus

Need to create a subdomain of our website and create as a complete shopify website from the scratch and customize the theme we already have "infinite theme from themeforest" product categories, sub categories and all sub categories to be identical from ikea website no product adding is required, but need catalog management and proper creation of navigation, smart collection (with automated tags to link with particular menus and products, an organized filter on collection page