A strong advice

i need to “wordpressize” this website http://www.clesenmain.com/.

Do you know a wordpress theme which structure/presentation is next to this website ?
Do you know by chance, other kind of wordpress themes i can use in order to do the same + all in a single page with a jquery website scolling like this : http://tympanus.net/Tutorials/We…
I need an auto-fullscreen background for each content, font embedding enable, a simple structure to switch easily from french to english and a vertical fixed menu.
Do you think wordpress is the best tool/cms to use if my client want to modify it, if i can’t spend a long time doing it ?
Thanks for all your advices !