Make sure you check the radial and axial load ratings on the bearings and go fairly overkill. I'd be a little wary of the fact that they aren't posted on the website, and the price of the rod ends is pretty low. Good bearings with tight clearances are expensive. You will also probably need to have somebody with a lathe make you bearing reducers to get the right width and diameter. You might be able to get away with finding premade reducers and having them milled down to the right width. I honestly think that once you find rod ends with the proper load ratings and it's all said and done, you'll end up spending almost as much as a set you can buy off the shelf.