Build a Website -- 2

I'm looking to build platform similar to [login to view URL]; but aimed to different sector - Social & professional network for Agri-Experts to connect, share & exchange the platform will contain the following modules - • My profile – o Professional resume (education, employers etc.) • My Projects Module – o Experts can share recent project they’ve done or participated in o Short background o Pictures upload o Scale ($, field etc.) • Discussion & Advices – o Project Consultation o Career/Job inquiry o Expert2Expert chat (like freelancer chat) o Industry Knowledge Article - Interesting Reading/Article/Research o Polls platform should be web based, mobile compatible, easy & friendly to use. the target audience are sometimes "old fashion" people What I have - 1. I already have few mocups ready (attached) 2. domain I will need the following services - 1. build website, including admin (not too technical) - something like CMS 2. Users will be uploading the content, not admin 3. Simple, yet effective user management, including ability to manage permissions & perform marketing activities (e-mails, newsletter etc.) 4. Website design, based on my guidelines & approvals 5. Logo design 6. Optional - hosting services for the site Only service providers who developed similar projects will be considered, i.e. professional network/community/ with rich user management. please indicate exact live sites/URLs from previous projects solution should be simple to use, easy & fast to develop. i want to create 1st version fast & go live This might not be one time effort engagement, but continues work Additional info will supplied to the relevant vendors Thanks