Being from Germany, and being familiar with the prices for a 993 in good condition and low miles (that's going to be hard find anyway) you'll pay a fortune for your dream car!
993's are getting hard to find in Germany, and prices are still in the EURO 30K+ range for good ones - anticipate spending at least $45K ($1.50 per EURO) not including shipping and any applicable taxes in the US. Another reason why I wouldn't buy a car in Germany is the fact WE JUST LOVE TO USE SALT to prevent our roads from freezing over - nothing else to say!
My best advice; find a car in the US preferebly from the Southwest with low miles. Good luck!
Andre'