build a web based SAAS app

In a nutshell “think”: Hootsuite/buffer + a database of 100’s of ready to post social media content (content database + posting/scheduling software) Project overview: here are the Bare minimum requirements needed to have a successful beta launch: (this list is a overview- please see tabs of pages for super admin and users below to see more functionality, the interface and logic needed) Tech: two roles 1. Super admin . 2. Users mobile responsive layout (mandatory for user role) Laravel /sql/mysql/cloud host (or another tech stack which can perform what we want, we are open ) Super simple interface for both roles a 3rd party CDN plugin for fast content delivery (not sure if this is needed) Supported SSL for whole platform. (Let’s encrypt? Or other? User and SA Inactivity security app timeout? 20 minutes? (what is best practice for this? User connects or disconnects via API their Facebook page and twitter account and instagram account so they can post content according to their time zone Timezone – each user can set his own timezone We will use social network GRAPH and REST api access, post and schedule the posting for facebook and twitter App features: User: User account registration form User Login / forgot password system User can edit and post in real time or schedule social media database content to their facebook page or twitter page (can edit existing post text, cant edit image) User can create their own custom post to post in real time or schedule post (can add their own post text and image) User connects or disconnects via API their Facebook page and twitter account so they can post content according to their time zone User can View /edit scheduled posts on calendar Super Admin Super admin can view and edit users Super admin can add and edit Social media content images in database Super admin can edit and add social media content database categories Super admin can make a user a "full service user" where as the super admin can select and edit an existing database content post, and schedule it to post globally on all "full service" user calendars according to their time zone can you send me a detailed proposal for me to review. want to know the tech . you'll use, and how each module will work, functions and logic, cost and timeline. I can share with my team and then after this we can have a call to go over details on skype- can you do this for us by tomorrow please? Do make sure you can ask us questions on all the details you need to know to make this software work the way we need it too!