How Hard Would This Be?

I am trying to get a website created for an idea I have and I know of a couple layouts I really like. So, my question is, how hard would it be to have a site designed that looks similar in layout to blogperfume.com?

This site has the "feel" I am going for. My site would not need to be anything too crazy, but I would like a similar layout to blogperfume.com. I am hoping there are some type of Wordpress templates out there that will get me close to this. If I can't figure out how to alter the template, I am more than happy to pay someone to help make this a reality.

I am also looking to have the ability to do a few other things on the site, but I do not know exactly what I need to do in order to achieve this.

1) Users must be able to register. They should be able to have their own username, avatar/picture, be able to contact other members, show their location, age, sex, mini bio, personal website and perhaps their friends.

2) Users should be able to post their own topics in blog format, not in a forum environment. Should they have the ability to do this automatically (with some type of limitations) or should they be submitted to us for approval first? How can this be effeciently achieved?

3) Users need to be able to vote for their favorite responses via either a point system or thumbs up/thumbs down. The topics with the highest ranking (most points, most thumbs up) will then automatically move up towards the top of the page.

4) Would be nice to have a section/widget for something like, "Hot Discussions".

5) Obviously sections for ads

Anyone care to offer me some help?

If you have the ability to make all these requirements come to life, I would love to speak with you and see if we could perhaps do business together.

Thanks,
-CJ