Welcome to the board! Is there any way to "hang on" to your family heirloom? Your daughter may change her mind in a few years and want it. I know when I was 43 I would not have wanted my grandmother's machine, but now I would give anything to have it!
If you really want to sell it, you would probably have better luck advertising locally. Not many people will want to pay for shipping such a large, heavy item unless it is extremely rare. Good luck!