RUSTY BOTTOM/was my first love

I have had a 67 Mustang V6 since I was 19 years old. The floor pans are rusted pretty bad and the frame has some rust. Is there a way to overcome this or should I use the car for scrap and get another. The Engine runs like a kitten. I have a rebuilt transmission. I just dont know if I should get something to reinforce the frame or not? I know I can get floor pans. Also is there an inexpensive route for parts any recommendations are welcomed. I've had it in storage for about 10 years. Any opinons ?