It is not easy to swap from an automatic to a five speed, but it is too difficult either. I did it, and many others here have too. And in the technical section of this forum there is a step by step guide, complete with a listing of the parts you would need.
There are several huge benefits to this. First and foremost, you will get a great deal of satisfaction and "bond" with your car more rapidly if you do this type of project immediately after buying the car. Second, you get a much greater understanding of the condition of your car by doing this right away. It will develop a longer list of things to do, but make it more likely you will catch trouble spots before they become big problems. Third, it likely will be less expensive to acquire a car with an automatic, in part because the car is a fair bit slower with the automatic (both because of the weight differential and because of the way it shifts), so some buyers will be put off.
And, of course, this points to a larger lesson -- buy the most solid and complete coupe you can find.