Need SRS Doc/ Architect for robust Wordpress CMS+Soc.Network

I am looking for an Individual to create a Software Requirements Specification Document (SRS) and the GUI, Architecture for my robust Word Press site (social network experience a plus). My Wordpress Designer/ Developer is almost ready to get to work so I need someone that can take on this project immediately & fulltime for milestone payments until completed. My site is a CMS with a somewhat simple Social Network feature within the site. You must be proficient in the current technologies and have previous SRS and software architecture experience. Again, I need someone who has proven experience and can ensure that the document is produced accurately and clearly covering all bases including database structure, security and modulated development. I have done a thorough amount of preliminary work including a detailed content map to the wire frames. I'm now getting into the interface, user stories & information flow, but would like to work with someone who is proficient in these areas. Examples of previous work (confidential elements can be removed) would be an advantage.