AutoCAD encoding 2D

The work is to copy old process equipment drawings into AutoCAD 2D format I currently have one freelancer working on this project, and require one or two additional freelancers to speed things up. I have 43 sheets of drawings to complete ASAP A knowledge of pipework, and flanges would be useful, but not essential, I can supply all the information required to re-draw to scale. I am looking at a price of around $25 per sheet. Some sheets are more complex than others. I pay by bank transfer or PayPal, payment is made immediately after review of drawings, 4 sheets at a time. I will only accept bids from persons who send me a sample of one of the attached drawings. These samples show complex sheets, and less complex sheets. If you bid for the project last time with a sample, you may re-submit the same.