Installing Magento Theme requires more setup and configuration, especially if you like to look similar like the Demo theme.
With my service, I will install it exactly the same as what you see on the Demo site.
For 1 gig I can install the theme that you purchase or download from Magento Connect.
If you purchased your theme for Theme Forest / Template Monster or Others. please check my GIG EXTRA
If you like the sample data to be uploaded as well, please check my GIG EXTRA as well.
Looking forward to setup your new online store.