Advanced Proof-reading and correction

I have a set of 12 sentences. For each sentence, 200 variations have been written with the same basic meaning but written using different sentence structure and phraseology. The aim is to achieve as much variety between the sentences as possible. I require an experienced writer to check through this content and: * Correct spelling, grammar and punctuation errors * Re-write any sentences which appear badly or awkwardly phrased, too abstract or utilising the wrong lexicon for a UK audience (i.e. use of the word 'automobile' when users in the UK would use 'car') * Increase the level of variety in structure and word / phrase usage between each of the sentences supplied. This is a very important aspect, and will likely form the most significant portion of the task The content is provided in the form of a .xlsx spreadsheet, with each sentence split into tabs, each containing 200 variations. The sentences have been ordered alphabetically to make it easier to identify instances with too little variation. I anticipate that each sentence set will require between 20 - 40, so as rough average approximately 360 sentence revisions will be required. Any changes made should be highlighted by entering a revised sentence in the spreadsheet cell to the right and changing that row's text to red. The spreadsheet containing the copy can be provided on request. Any examples of your previous work, and an overview of your experience would be advantageous.