Hi~
I believe I am the best person for this job, because I have two years experience in spell-checking and proof-reading of OCR documents. It seems to me you are doing the OCR work by human, to ensure the 100% accuracy of character recognition. Not all the people can understand the importance of accuracy in this problem, and most of them may not know what kinds of mistakes could often happen in this special situation. With enough experience, I believe I can do your job, well and in time.
After all, I hope those 200+50 images are not very big, and they are photos instead of printed documents. In that case, my partners and I can finish the job, in 4-5 days. All of us have enough time recently.