From everything I have heard the reproduction 68/69 fenders are not the greatest. I even recall watching an episode of overhaulin with a 68 or 69 they had to get reproduction fenders for. They had to ... negotiate the curve of the fenders so they would even mount up. I just have not heard good things about them. Watch craigslist in your area, heck put an ad on there that you're looking for them. They will turn up. And as stated above, if they are local you don't pay shipping.
Good luck and welcome!