Custom Wordpress site using RocketTheme gantry

We have chosen a template to setup this project. we need someone to build off of RocketTheme Gantry platform Basic theme should work will need custom slider set up using logo and images also need widgets installed for newsletter and client/user login 2 to 3 levels. we have logos built and a basic page map. will provide more text as we go. this site needs to look professional. some flash on home page . need 2 sets of pages from the home page one to one division of the company and another to another section company. need about 20 pages total. you will need to build attractive graphics to go with our logos. each needs signup and management for mailing list. we will also need private loin for employees and customers where they can retrieve files. would like to have a file sharing link to upload and download some large graphic files we use. and most importantly we need all this completed in the next 4 weeks.