Customise a wordpress theme and produce a slideshow

Update - thanks for the various proposals, we're impressed with the quality of you all, and with the number of proposals received. We want to review them all properly, it's the least we can do after you've taken the time to send them in, and we're going to do this early next week and will then revert accordingly.

We're an app design/development company and are looking to update our website. We have purchased a wordpress theme which is highly customisable. The theme is: http://themeforest.net/item/coworker-responsive-retina-multipurpose-theme/4608484.

We have installed the theme on a test url, and with a MySQL database, to have a look at it prior to having it customised, but are not sure that we've done so correctly.

So we're looking for someone to check what we've done, or start from scratch if that's quicker. This will involve reviewing the Themeforest download, setting up the site as a parent/child theme (so that future updates can be accommodated without reformatting the site), checking all the relevant resources from within the theme are utilised, but cleaning out all those that aren't.

We'll want the theme customising to incorporate our corporate look and feel and colour scheme, and to ensure it is competitive versus other developers whose sites we would supply.

We also want to utilise the sliders within the theme and some imagery will need producing for use in this. Essentially this will be the production of some mobile devices with operating system logos in the screen areas.

We want this job doing asap, and only want UK based designers/developers to apply.

We do outsource work, both our own sites and client work, and for the right designer/developer, who does a good job on this, there could be an on-going stream of work.