Struck Gold

After working hard for over 10 years as a construction worker, you finally have enough to move out of your old home.  After months of searching, you find the home of your dreams, and at a great bargain.
Although it costs a fortune, you decide to take the lot and fix it up yourself. The only problem is, that after you purchase the lot, you realize why it was being sold for such a bargain. The lot is unbuildable!!!
Try as you might, you cannot resell the lot, and the original owner mocks at you and takes pride in his hoax.  So, with no options left, you decide to make the best of things and try to make this place your home.
One day, while preparing the foundation...you stumble across a shiny object.  With closer inspection, you realize that it isnt merely any object, but... "GOLD!!!!!" YOU FOUND GOLD!!!!!  Without hesitation, you prepare your tools and begin to dig up the gold. The only problem is, that now the original owner wants the lot back, and has found a loop hole in the contract. However, if you can dig up enough gold by the dead line, you wont have to sell the property...System requirementsOS: Win XP