Custom Magento Theme development

We are a small digital agency and we would like to get a quote for an initial project with the following aspects: - This is a custom Magento 1.7.0.2 installation that is already up and running, but the current layout is based on a purchased theme. - We have already created the layout for every page on the site and will provide you with the will open PSD. - The final theme has to be validated for every major browser (IE 7+) and has to be compliant to SEO guides (clean code, correctly tagged elements, etc). - Our aim is to deliver this project by October 30th or before. If the final result meets our quality expectative we are definitely looking forward to many other projects.