1971 Demon Stripes
I can make a paint mask or stencil kit for you. These stripes flair and the center gap is not consistent either - your painter could never tape them off and have it look right next a car with the correct stripes.
You need to find out how he wants to do it - most painters prefer a mask kit. That is where you shoot the stripe color 1st, then apply the mask over the paint. Shoot the rest of your base color. Remove the mask and clear the entire body.
The other option is a stencil kit. This is used to paint the stripe color on after the base color has been applied but before the clear.