I just sent a note to Joe that with a pin reassigment and placing the
3 sockets and the 7414 at each corner with the mach part in the center,
you can do the layout on a 1 layer board:
+- -+ +- -+
J1 J3
mach210
+- -+ +- -+
J2 pwr,gnd 7414
pins
the ground wraps around the outer edge of the board,
power and clocks go through the center..