rocker templates?

Getting ready to shape a few boards. I have a few boards that work for me that I can copy the rocker and outline templates from, but I am wondering if there are general guidlines for rocker templates available. For what it’s worth I plan on making a large fish ~7’, a “fun” board at 8’, and some expermental boards between 6 and 8’ mostly full outline multifin jobs.I have the rocker that I want for the fish (fairly flat - 3.5 nose and 1.5 to 2 tail), and am closing in on the rocker for my fun board, but the others are out in the blue right now.

I’m  a big buy 6’5" 225#, so I need a bit of floatation and a longer rail line hench the bigger boards.

Any help or a link is appreciated.