Magento site replication - Moving from Joomla to Magento

A Magento site build and theme replication for an e-commerce product personalisation site at [login to view URL] (moving from Joomla to Magento). Needs to integrate with existing designer tool, with a few extra customisations. Requirements: * Implementation of Magento Shopping Cart system (we will provide a few sample products and add the rest ourselves afterwards) * Same theme & content replication with existing Joomla site (5 exisiting webpages) - responsive design required * Needs a ‘customise’ button next to ‘add to cart’ for each product page which would link to designer tool * Design tool needs ability to feed customer-designed products through to shopping basket (this can be liaised with our existing tool designer) * Extensions required: * MailChimp Integration ([login to view URL]) * OneSaaS integration (for Accounting and CRM) * Linnworks integration (can be briefed separately) We are looking to build a strong long term relationship with the successful freelancer, which will lead to continued work, so please only bid if you are open to this. We look forward to working with you! Note: For developers who bid on our previous Opencart project post, please repost again if you have skills in Magento, as we want to proceed with this rather than Opencart now.