Rock Climbing Hard Splint Scenario: Fantastic Four

A victim fell off a cliff while rock climbing and has broken their lower arm (antibrachial). The paramedics are unable to reach your position.
What do you do?
>Find Sticks
>Place Sticks on sides of broken arm
>Wrap shirt, jacket, and/or sock around sticks
>Use shoe Strings to secure combined items
>Help victim to open area
>Wait for paramedics

Your victim was picked up by paramedics.