Migration Joomla 1.5 (+VirtueMart) to latest version - 3.4

Hello, We are looking for an experienced specialist who can update a Joomla 1.5 based (VirtueMart) online store to its latest version - 3.4. The store is connected to the database system - FileMaker hosted on an external server, which is strongly integrated with the current Joomla version. While migrating, all data must remain intact and product database shall be unaffected. Migration and update shall also include all of the currently implemented modules, components, plugins and themes. Essentially, we wish to have an exact representation of our store's current version but fully updated. Joomla and Filemaker are fully translated into polish, Filemaker system however is partially provided in english language. Please pay special attention to the FileMaker database system, which is closely associated with the current version. It is also a complete stock and invoice system. Everything works perfectly on a current Joomla version and must be working perfectly updated to the latest version. All tests must be carried out on a separate host server to allow our store to run without any disturbance. We will provide all the necessary files and access data. We expect listings of professionals who are confident that can fullfill this task. We will not consider offers from amateurs who are not sure if they are up to this task. Bids from entities who are replying for this ad without reading the details will also be rejected. We expect serious approach to this job and serious replies. They shall specify execution time and costs thereof. The above detaills should be sufficient to enure that an estimation can be specified. We accept remote cooperation offers