Prepare a Wordpress theme for submission to Themeforest

General information for the website: Wordpress Theme preparation for Themeforest
Kind of development: Customization of existing website
Description of requirements/features: I do NOT need a website building. All I want is an existing theme submitting to themeforest. Payment will be on acceptance of the theme by themeforest.

There are issues with the site that would block acceptance - that's what needs sorting.

This is the theme: http://onepage.aerin.co.uk/
Extra notes: If you post a generic application I will reject without reading. If you offer to build me a website or a theme I will reject. If you tell me you are expert wordpress developers without qualifying that statement I will reject.

I am looking for someone who has built a theme and is selling that theme on themeforest and therefore knows what is needed.