In my Epic 18, I fabricated a crossbar to span the footpegs using an aluminum closet rod, after seeing one someone else had made. After measuring and cutting it to size with a hacksaw, I hammered the ends flat and pop riveted two flat flanges on either end, drilled for bolts.
Since the boat has the Smart Track pedals, I shaped the flanges with a slight curve to match the curve of the pedals, then drilled straight through the ribs on each pedal, threaded a long bolt through the flange and into the pedal. Due to the length of the bolts, I didn't even need a nut to secure.
While the coaming doesn't quite allow a knees up and out position, driving with the legs with the feet centered (despite not being able to reach the Toe Pilots from the center position), made a big difference.
Another option is to convert to Pat from Onno Paddles' foot pedal assembly. I swapped out the tiller bar in my EFT for his setup and never looked back. Incidentally, the Westside boats essentially use a closet rod along with the tiller setup, as well.
"Nice? It's the only thing," said the Water Rat, solemnly, as he leaned forward for his stroke. "Believe me, my young friend, there is nothing -- absolutely nothing -- half so much worth doing as simply messing about in boats."
'The Wind in the Willows'~Kenneth Grahame