Quarter sawn, 2- 2.5 inches will give you lots of options. In any case don't skimp because you don't know how that particular log will check and warp while drying. Within the day you cut the blanks be sure to seal the ends, wax, paraffin, works great. It will take several years of slow drying before you do anything else with the blanks.
There are lots of half-stock styles you can choose from, the Hawkin is only one style.
dave