I know just enough about this to be dangerous but I agree with the above statement. Also as a person who once rented a floor sander to do oak floors, what I learned is what they rent you is not necessarily what the floor guys use. They gave me a nice expensive looking machine, but when I had trouble and my professional floor guy friend came over to help, he couldn't do much better with the machine. It had no height adjustment. Also with the disc edger he did great work and I made great gouges. And then there is the art of the floor buffer with the sanding screens... Basically you might hire a pro to do the sanding.

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra