Please note, designing my own house, everything I want, this is all theoretical.

Alright, listen. First, don’t tell me "YOU are NUTS, that is WAY expensive." I already know that. I’m pretty young right now, but I’ve always wanted to grow up to be an architect and interior designer, and I’ve already proven to be good at it, but 15 – 20 years in the future I hope I can have my own custom house, which has been my dream. I know it will cost a LOT of money, but remember, this is all theoretical. I want a 3600 sq ft house, and it’ll maybe cost around 0 – 0 per square foot. Doing the math, it can range from 0,000 to 0,000. Then I need to take into consideration the costs of things like appliances, furniture, all the good stuff I’d want in my backyard, yeah yeah. I want it to be in a location not in a neighborhood or anything, but on an open land that is not too far from a town in Metro Detroit. Dunno how much location would cost, or the land, or the furniture (There’s gonna be tons of that) or getting electricity, water, sewer system etc. in, and I need to know the total cost, so I can make a good estimate of how much money I’ll want in the long run – my plan is to work for X amount of years until I can afford to have my own dream house, then continue working until retirement. So, I need to make an accurate guestimation of how much I’ll need to save up before making that dream come true, and I know it’ll take years and over a million dollars and all, but remember, theory, not realistic, so go nuts. Any ideas? I want to know costs for specific things, too, mainly things I wouldn’t know about.
Adding in, it doesn’t matter, I wanted to know about what I asked, not about that. And if you think 3600 sq ft is small then you are snobby and rich.

On December 13, 2006 a local home builder put 2 new houses across the street from me. They used an excavating company to dig a ditch and install a new sewer system in my Utility Right of Way by the road. They covered the pipes up and have not touched my property since. I told them I was going to sell my house in the Spring, and needed it fixed ASAP. Well since then, I have tried to contact them several times, called, stopped by their office and find out a time frame.
Still, I see them drive past and look at my property, but never stop or call. It is now April 3, and no sign of any work going to be done. I just received an estimate for 50 to have it repaired. Everyone who comes to look at my beautiful house for sale asks about the damage up front.
WHAT DO I DO? Is there a certain period of time they have to repair it? Do I take them to small claims court? I live in Ohio and it is now spring. Need help ASAP, my house is for sale and my property looks terrible.