Customising a studiopress foodie theme website (2x)

1. Design will be a replica of this website and its functionalities - http://ohmyveggies.com/.
2. 1 theme will be purchased from this website http://my.studiopress.com/themes/foodie/#demo-full and customised to look like http://ohmyveggies.com/.
3. A few requirements will be added as well.

In summary, these are the 2 sites I would like to replicate:

Main site - http://ohmyveggies.com/
Sub site - http://potluck.ohmyveggies.com/

Please note - Standard foodie theme without customisation looks like this - http://www.thewickednoodle.com/ (THIS IS NOT WHAT i WANT)

THIS IS WHAT I WANT -

Main site - http://ohmyveggies.com/
Sub site - http://potluck.ohmyveggies.com/