Hood hinge repair or replacement

1968Dart said
Hi there, do you remember the length of the shocks for your hood? Did you just guess for the placement of the pivots? Thanks

Stroke length was 5 inches, the compressed length was 10 inches. I picked a point slightly above/in front of the lowest point of the hinge so it would not be over center. I tried various pressures and with my hood weight I used 180 pound shocks.