How much does electrical, plumbing, and porch work cost in Chicago?

I currently put a bid in on a short sale in Chicago. The sellers accepted just need the banks approval. Anyway, I was wondering how much should I expect to spend on fixing the electrical, the plumbing, and replacement of the front porch on the house. I am going in with a 203k. The house is approximately 1,150 sq ft...if that helps any. Victorian style house, three levels.