Intersection between curves?

Hi! I need to find the intersection between these curves, and also I need to trim the horizontal and the vertical with the bound of the outer geometry. Any ideas on how to do it? I tried with region intersection and with CCX yet nothing works! Thank you!
Bench.3dm (29.9 KB)

Protocolo Productivo (110.5 KB)

Next time, it would be better to delete the unnecessary part of your messi definition and upload only what you need.

Protocolo Productivo (104.6 KB)