Drag and Drop WebBuilder (Advance Java/Jquery/Ajax and PHP/MySql)

We need an expert (or a team of experts) to develop DRAG and DROP web builder.
Examples:
http://www.weebly.com/
http://www.basekit.com/

The website builder will be DRAG AND DROP with features similar to weebly and basekit.
Requirements:
-All features in weebly and basekit
-Drag and Drop
-Front-end design
-User registration and pricing similar to basekit

Provide:
-Total Cost (Including front-end design, development and editor)
-Timeframe

Skills Required:
-PHP/MySql
-Advance JAVA, JQUERY and AJAX
-Cloud computing knowledge
-Creative design skills

Send examples of java/jquery/ajax work you've done in past.