Modeling a surfboard

Hi I am trying to model a surfboard but I am having issues with the tail and nose (end points basically) I have checked previous posts but all the solutions are like 10+ years old and the links no longer work. I have attached my model. any help would be appreciated. My model requires a lot of work and it doesnt have the curve in the Y direction but for the moment Im struggling with the lofts 

Just to re-iterate I am looking for a way to COMPLETELY model the board, in other words the nose and tail must be as per real life not cut off almost unperceptively or another work around.

modelingsurfboardloft