Some redesigning and some functionality needed for my website

Hi, One of My websites needs a new front page - want to "Split" my users into three different parts of the site... These are the first questions our users need to be asked: 1.“Are you looking for Qigong classes or courses?” - 2.“Would you like to study to become a Qigong Teacher?” or 3.“log-in to the private members Area?” We need NEW buttons or a slider to attract people to the different areas. The first third of the site needs to have an introduction page that shows up-and coming Courses and retreats, and then a directory of teachers, their classes and links to their websites, methods of contact etc.. The Teaching site will remain pretty much as it is, but could be better organized. It needs the Mailchimp plug-in on most pages, Booking System- I need to have a booking system too that allows students to book a course, pay for it and receive a confirmation that they have a place. I’d also like to specify how many places available, and stop the bookings when it’s full etc.. Shopping Cart -We’d like to have a simple shopping cart to sell DVDs and Audio downloads. The third section of the website Private Members Area- The private member’s area is a shambles! I used the S2 Member plug-in to organize access to the Audio files that we give our students, but it’s not really working! The membership allows certain students to access certain files, but not all of the files.. So I have 50 files, I want to give 5 students access to 10 of the files, a different 5 students access to a different selection of files and another 10 different students access to all files! It’s a model I’ really familiar with, as I used to administer Windows Networks. (I.e you just add permissions to each file, and Active Directory checks to see if a user has access granted to that file… the problem is I’ve never seen anything like that in WordPress! Maybe there’s also a fourth area..(I’d like for my partners and I to be able to do simple accounting on the site too if you have any ideas about this? (We could put our expenses into a form, work out the costs of a course or a retreat, and do our yearly profit and loss…) - This could be discussed and is not 100% important The general look and feel of the site can be changed a little also if needs be, but we are basically happy with the color, the “O” logo and the banner. Please Split the build into Phases, i.e Step 1, Step 2 and Step 3 If you have Bothered to Read all the way to the Bottom of this detail, then IF YOU WANT THIS JOB, DON'T SEND ME SPAM - I JUST WANT A HUMAN REPLY Including the phrase "OP3NSOURC3 I read and understood the Project" ALSO WRITTEN INTO YOUR QUOTE If you don't add this, then I'll not be replying to you. Thanks and Happy Bidding :)