which blank for 6'5" flat tracker?

I have a 6’5" chris christenson flat tracker im going to replicate for a family member. I just measured the rocker quickly and got around 1.5 inch tail and 2.5 inch in the nose. these things are flat. what u.s. blank would you use or recommend so I wouldn’t have to mess too much with getting the rocker right? thanks 

80H just going to need to foil the deck a bit more.

US Blanks 7’4"SP centered in the blank will get you the rocker spot on.  Also, the deck will be nice and flat and will fit the Flat tracker just right.  Flatten out some of the apex rocker, it is too curvy in that blank.  Other than that you should be good to go.