Hi, I can do it for 250$ and with the CMS joomla so you can manage it easily and of course add new functionality ... you can see some websites that I created recently hxxp://rtinsat.123.fr hxxp://joomla-planet.com it has PR4 because I do its SEO
I think tightbeatz is not a excellent website to clone, why dont you develop a new and more extractive website with the same content.
This is worldblackstar, Web master. If you want to design any website, just contact me through PM. i am here to help you. Don't worry about money, i won't charge morethan $150