Website Maintenance for Rayzz Tube Site

What I need or require: Website maintenance on a video tube site (runs on rayzz script) which includes: Web Design 1) Web design for occasional static pages 2) Web banner design for occasional events & news 3) Button creation, minor skinning of website Web Development 1) Website runs on rayzz script. - installation of mod or plugins 2) Troubleshooting of bugs 3) Installation of 3rd party scripts (e.g. live chat) 4) Customization of point system. (probably custom coded) I'm not looking at a particular project at the moment. Rather i'm looking for a reliable vendor /freelancer to help maintain this website on a long term basis. Important to note that this is a rayzz site - and vendors who bid MUST have both web design and web development (php) capabilities. Specific expertise/background that I am seeking: 1) Familiarity with Rayzz Script 2) Able to advise on online marketing is a plus 3) Good design is a must (think web 2.0 design) 4) Good in programming (able to integrate scripts easily) Timeframe for delivery: N.A Evaluation criteria: 1) Costs 2) Responsiveness 3) Efficiency How to quote for this job: Fictious Scenario: Assume i want to install a live chat system on the website (rayzz script) . PM me what is the most efficient method which you will recommend, and the corresponding manhours involved. More imptly, please state your manhours costs.