Arm model to create a mold for horror film based on actress arm

Looking for a model with arm measurements that match our actress to create an arm mold for a stunt scene. Measurements are below. The process would involve a plaster mold of your arms and would take about 3-4hrs. The workshop is based in Edison, NJ so must be able to travel there.

Length of arm shoulder (from armpit) to finger tips: 24.5"

Shoulder to elbow: 8.5"

Elbow to wrist: 10.5"

Wrist to fingertips: 7.25"

Circumference of upper shoulder: 12"

Circumference of elbow: 9"

Circumference of wrist: 6"