Where to get a back panel fitted for an ipod?

I've just bought an Ipod Classic 6th gen (80gb) from ebay and it is pretty badly scuffed. I bought it cheap so I am prepared to pay for a back panel and maybe a front panel to make it all shiny again. And I have looked on the internet for the parts, but I would prefer someone to fix it for me (i know that removing the back panel is incredibly hard on this make of ipod) so I was just wondering when/who could do this for me? Either on the internet or an actual shop or something. Any suggestions?