reverse rocker on a 9'4-9'6" nose rider

I got lots of ideas, but the rocker has me a bit baffled, it will be my first Longboard shape.
Dims will be around 22-23 wide and 3 thick single fin log kinda thing.

As in total rocker for nose and tail.
Rocker at maybe 12 inches and 24 from nose and tail.??

Any thoughts or suggestions would be awesome.

I know someone will say buy the 9'10" blank and then turn it around and start shaping, but i just want a guide to work from?