Prestashop template need left menu

Hi we bought this template [login to view URL] But afterwards we found out, that we need to include a left menu (or right menu if easier) that fold in and out. A bit like this left menu [login to view URL] but with other design. The fix must not destroy the responsive template.. so make sure it works on mobile platforms... we need this urgently, so only bid if u can start now.. and plz tell us in bid how soon we can get it... thx!