[-Josh-]

You can't get the ball joints seperate, you have to get the whole control arm if i remember right, they needed replaced on my spyder.

Usually a three angle valve job will run you a couple hundred bucks, it's a pretty simple procedure nowadays, they have one bit that does all the angles at once, pretty nifty. You dont need to send the block in to get the surface done since it's not aluminum you can simply get a scraper and some emery cloth and go to town on it until it's cleaned up.