IMO if your going to get after market arms, for sure go with arms made out of chromoly which those are not. Also cheep hiem joints are shit.
To buy even just 2 top of the line heims joints, they would cost more then the whole arms all together. So with that being said, go with some wicked arms with ball joints for about the same price. They are 100% chromoly.
There usually on ebay all the time but there not on right at this time. Check again tommorow for the "wicked" a-arms