I got rid of all my left hand thread studs and installed all right hand studs. Any reason why you wouldn't do that, other than originality? I can't remember what I did with the left ones, I'll look tomorrow and see if I can find them.
Norm
I would like to keep the car as original as possible. I know they are a bit of a pain if anyone is unaware about left hand threads. I learned the hard way when I broke a stud off a 66 Valiant in shop class in the mid 70's.