Cs-cart Modification

Hello Cs-cart professional. I posted Cs-cart project but I changed request little bit and post again. Please refer attached image. If you can do please let me know. It is better you have Cs-cart experience. No.1 I am worry about upgrade and overwrite. ## Please clone my current theme (Basic skin) to another folder and fix all what I requested. ------------------------------------------ No.2 Please erase brank of over top header. Refer to the image attached. ------------------------------------------ No.3 Please customize checkout page. I am only selling 1 Guide Book right now. I don't like complicated checkout page. About checkout page I don't need returning customer and checkout as guest. I need resister only. Please change like attached images. Please use my_change hook, when you modify. And explain to me how did you modify. I need to know for the future when I sell multiple products. In the future I will need to change again. (Please write down for me for upgrade) If you can do it. Let me know the cost of all changes (customizes). After I select your offer, I will give you my ID and PW of server & CS-cart admin. I need to change button and design of Cs-cart shop after this project. If I can find reliable, reasonable, experiensed programmer I would like to keep continue to work with. Thank you in Advance, Meg