71 Duster ladder stripe ...HELP

Hi FABO, my Duster is getting ready to be painted real soon and i decided that i would like to add the Twister style graphic on the hood, also known as the ladder stripe.
Applying the decal is pretty straight forward, (i think) My question is does anyone have a real Twister hood that could take some measurments of where the black orginsol paint starts and stops?
Any advice or help would be appreciated... @Oldmanmopar @davescuda .... Thanks Rich