Angle is 90 degrees:
A = Tube length is 1002.2 +(2×10) = 1004.2mm.
Mind you, the tube sticks a bit inside the alu/lead/x material blocks holding the springs: it's 10 mm either side.
A2 = (as measured on the hood, from middle between 2 holes to other side) =1008.6mm.
Mind you: I think the hinge is quite "square" in dimensions, but the two mating surfaces (on my hood at least) are not parallel faces to each other: see how the angle iron shows a gap at the peak of the bracket? (picture 000621.jpg) I think those 2-3 degrees are lost in the alu/lead block and it's cage.
Measurement B (on the hinge system) will show some flex, as on my car the right hinge in my system is a bit wobbly on the right side where the left is quite snug ;. Right (see pics) changes from 39mm when pushed inward, to 43 mm when pushed outward. The other side is snug with just 0.5 mm of play.
So having that total flex on 2 sides adds up to a compressed (smaller) dimension of 1009.6 mm ( arms pushed together), and 1100.0 mm when stretched to the outside.
Measuring B on the car's fender gives me 1012.1 inside to inside, which is logical as the shoulder bolt takes some space between the fender bracket and the rotating element of the hinge.
In order to reproduce accurratly, you'd need to measure the thickness that the shoulder bolt adds, and subtract that from the fender bracket left-right dimension 1012.1mm. Or install the bolts and measure again between them. That dimension should be the max width of the 2 arms. (If all is well, it should match with the values on my system; between 1009.6 and 1010.0mm)