I started with two large pieces off of our firewood pile. The spring rains and winds have blown down several large oaks, and we have an embarrassment of riches in the wood pile.
I simply drilled the billets and cut legs from some 2" oak plank that warped and couldn't be used in making the bench top.
Sawed, wedged and glued. Good solid knee-high benches for crosscutting and ripping boards, as well as broad hatchet hewing.
I really love my Swedish hewing hatchett - toughest edge I've ever worked with.
Simple stuff, but it has to be done. Put it off for too long.