Yes Yes Yes Please do yourself a Huge favor and do like these guy's have told you take your car to a good shop and have new 4-link bars made it is not that bad you cant put a price on safety .
Just look what could happen if they broke and you crashed if no one gets hurt or killed you still lost more than it would cost to do them right .
I know you will That's why you asked in the first place .
Take care and good luck with your build. Ron