Sway and shocks

1972 911 is my first Porsche project so I could use some direction on sway bars. This car never had any. The car will never see track use just a street car. While I have the suspension out from under it I am trying to decide if it is worth have the arms welded for the balls or just do something different. I would like to keep the bars light at about 15mm to keep the car from ridding harsh.

Another question is about the Boge inserts. Looking for the best ride I've heard that the Koni's will give a better ride than the Bistens. Anyone have any experience in this?

Thanks for your insights.

Ok, figured it out, thanks

And the conclusion was?