Construction or rehab price list

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I am investing in Chicago area, especially in the south area. Do you guys know when can I find a list of general prices for construction or rehabs. For example, cost of replacing drywall, tile, replace toilet, vanity, etc. I went to chicago reia meeting in chicago, the host showed a page that show all these general material and labor cost of al these items. It was a tool to help negotiate price with contractor and estimate cost of rehab. Do you guys know where I can find this list with details?? labor and materials. Thank you Any answer is appreciated