changes needed to website (already live)

I have a paid educational subscription based website built on wordpress. It is live and it is complete. However, I would like someone to a couple of odd jobs and few changes on my website. This is the list of tasks that need to be completed by the end of Monday 10th April 2017 These are the three main things. I am offering £70.00   [login to view URL] - major priority  =  On homepage there should be an exam to purchase with two buttons  one for "guests and free subscribers" and the second for "paid subscribers". The guests and free subscribers will pay full price. = the paid subscribers should be directed to login form once logged in there should be a button available on their "home" (first page they see when logging in) - for them to purchase the exam at half price = the exam is to be released on the specific date - there will be2 parts. my idea is to create a blank page stating exam to be released on X date"   So people who purchase in advance of specific date and attempt to take the exam know its there and they've paid for it.  A link to this  blank page could appear  on their "home" (first page they see when logged in" as button or tab  like  ones on the left hand corner... so when they purchase it and click on it will lead them to the online exam  = this exam (2 quizzes) i will add on specific date ( my worry is if i am allowed to have two quizzes on one page - in which case create as two separate pages = i will cream the exam uses the "quizzes" bit of the back end... much like i did with creating quizzes for the course pages. 2. major priority the promotional discount offer – = i believe there is a setting somewhere you can apply something like this for a period of time.  = the promotion offer is a discount of 50% of the subscription packages (see homepage as reference) for a period of 1 week only.  After that it should automatically be back to the original price.  = Or perhaps the idea may be to have a discount code they apply themselves at checkout  to get that discount  and that discount code expires after 1 week. 3. Security  = the big thing is https- connection is not secure issue.  (major priority) = multiuser login must be disabled so no that no more than one can access at the same time  at the moment i can access at same time  with mobile and computer (can be fixed last) I need the major priority things done first before the lesser priority stuff [login to view URL] I would like to upload images to the slider of my home page 5. SSL issue not set up 6.. Email system not working These are my priority tasks