Intersection for two curves

HI,
I just need one point of an intersection for two curves and not two points how i have to produce that?

Geländer Support.gh (31.0 KB)

just use list item.
also, no need to post entire project. just internalize data.
have a look here. (esp. no. 3 and 4)

item.gh (8.2 KB)

Thank you for your help