How much to add new septic, replace plumbing and electrical in a 4000 sq ft house build in 1875?

Looking at buying a house. The local building inspector says it needs some electrical and plumbing. It also has a cesspool instead of septic, so that would need to be replaced. We are in New England. Looking for a rough idea of cost so we can factor that into our bid. 2 hours ago - 4 days left to answer. Additional Details We are planning on replacing all of the walls and doing extensive remodeling ourselves, we just have no idea what we are looking at for the price of replacing plumbing and electric... We can't get estimates until we have placed a bid, so we are just looking for general info. Would it be safe to say $15,000 each for septic, plumbing and electric for a total of $45,000? Or should we plan for $25,000 each for septic, plumbing and electric for a total of $75,000? Just looking for a general ballpark ~ won't hold you to it, I promise :) 0 seconds ago