14' flatwater race sup template for aku shaper

Hi folks,

New to the forum, trying to build a flatwater raceboard using AKU Shaper.

Was hoping someone might have a template I could use as a starting point.

Most concerned about getting the rocker right! Looking to build to about a 26" width. 

Pretty sure I can map the width off my existing board, but not sure how I can get the rocker lines accurately.

Thanks for any help!

Toby