Adsense RSS CMS

I am looking for someone that can build a PHP based CMS for building and maintaining very basic Niche sites. Sites will make use of Adsense for revenue and display RSS feeds as content. I may also want to include options for other ad links like Bidvertiser and possibly the ability to gather and display articles form article sites. Whatever the final outcome it must be very simple, straightforward, and fast. The CMS must be able to run on almost any free hosting account and therefore no MySQL can be used. A flat file database may be a possibility if needed. The CMS will be able to use any/all free CSS based templates and therefore easily customizable. Must be able to run on PHP 5 and please consider all restrictions from free hosting companies.