Build a Magento Multistore

Dear freelancer I plan to create a Magento multidomain – multistore with single backend and multi front end My current situation is: Hosting : Siteground 1st Domain name provider: Siteground 2nd Domain name provider : [login to view URL] (Greek site) Possible 3rd domain name provider : [login to view URL] Please provide me a quote (including time and costs) for the following tasks including different price for each one please. • Initial Magento installation and confiruration for Multi store-multidomain • Template/Theme development (or customize some of the ready ones) for each store • SEO Project final price can be negotiated