Propose HN: HN Marketplace

What up guys,

Why there isn't an "official" HN Marketplace?

Why dont we create a site where you can sell, buy or exchange domains, websites, scripts, services and more.

If someone is interested in building it as a weekend project, I'd love to help designing its UI.

Bonus: HNmarket.com is available.

If you are interested in having this but don't have time to help code it, maybe you can tell us what features you would like it to have.

(Contact information is in my profile)