Create a simple template for Wordpress

I need to create a template like my [login to view URL] web that has the avada template ThemeForest. It's very simple, I would deliver the PSD made by me in photoshop, adding icons and texts. I want something made from scratch, not divine elements or the like. It would be a template header, content and footer, without comment or sidebar, and once this fact and would pass to the next round, same template but with variations. It would be totally clean, no customization, Wordpress as quite in control and do not need all the stuffing coming in avada since php code is changed. The next phase would be the same template but modified to add a sidebar to the area blog, another template for a WooCommerce store and one for the social part compatible with BuddyPress and bbPress, since they use multisite Wordpress and each site will have its staff. The code would be very simple, charging as little as possible to go very fast and also 4 templates (main Web, shop, social and blog) share the same header, content and footer. First of all, it seems very complex, but we talk about creating super basic template and then add some things to the other 3 variations, do not talk about very complicated.