springs for american cylinder

[galactika]

on the American version kdx200, in contrast to the Japanese, fastening the resonator to the cylinder by means of springs.
I need the characteristics of the springs, namely:
length, number of turns, wire diameter of the spring, the diameter of the spring itself, and what is the rigidity.
for example, how many kilograms you need strength to stretch by 5 mm.
and one more question.
at what distance from the beginning of the resonator the mount for the springs is welded on.

I want to put an American cylinder, but I have a resonator from the Japanese kdx, where the resonator is bolted.