Custom CMS for vegetarian website by seo4china

We are an SEO firm and looking to build for a client of us for a website that could be easy to update later through a back end system (CMS). I prefer a custom one that is straightforward to use other than the open source ones such as Joomla wordpress etc., as client knowledge of IT is limited... (Budget: $250-750, Jobs: CMS, Linux, PHP)
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