Wordpress and coding work on a onepage website

Hello, it's a little pout to quickly earn a little money, there are several spots to perform on the website. I will not give the address of the website, once you are chosen to work on the task. At the end of the work, there must never be any contact with the end customer, any contact, even after the delivery of the work, may lead to a request for reimbursement.
The tahes to perform.

1. The website is a onepage, the menu is alive but the animation of the menu does not work on all links, it is necessary that the menu works well on all the links.
2. When you click on the menu the page is sometimes a bit too high or a bit too low. It is necessary that with the click on a category of the menu, the page is well in the middle
3. The pages (the different parts of the page) must be on the screen, without we see the categories above or below. This is very well done for example on this website http://www.ardian.com/activity-report-2016/en/
4. There are three different activities, you need a nice part well separated for each activity, 2/3 for a carousel that displays the photos and 1/3 for the description and reservation. I have a lot how it's done with this slide http://proword.net/Plugins/VC_Pro_Post_Layout/simple-layout-7/
Except that I wish it is the photo that moves like that, but the description on the right remains fixed.
5. The photos of the staff category must be bigger.
6. Below the address you must add a Google map.
7. The tripadvisor logo must have a green background.
8. The bottom at the bottom of the page around the heart, must be red.
9. There must be arrows and up and down pages that allow you to click and go to the next part.
10. it would be better if a scrol with the mouse, does not allow to go freely to any part of the page, but rather to precise parts and stops, just like here http: //www.ardian .com / activity-report-2016 / en /
11. Everything must stay updatable-chnagable in visual basic after your

Best regards