If you aren't going to stay original, go with the tube shocks. I put them on my 46 and they make a huge difference in the ride.

I kept the knee action shocks in the back, so I'm running the tublar and the knee action in back and just the tube shocks in front. Don't ask why I kept them in the back I don't know. I guess I just like the way they look. They don't do a great deal but I kept them anyway.

Good Luck
George