Joe - This video is better with the close up. Yes, you're on track to replace that odd-ball 2-piece rod with the correct single piece unit. I see 2 possibilities for getting the front rod clevis detached from the pedal arm:
1 - Use some tools like these (pictured below) to snag the end loop of that cotter pin (visible in your video), twisting/pulling it to get as much of the loop exposed as possible, then grabbing it with some needle nose pliers and twist, pull and drag that cotter pin out of the yoke pin. You should be possible to hook that cotter pin eye and twist it 90 degrees to try and get a better grip on it with the pliers and work it out. Once the cotter pin is out you should be able to get a putty knife/screwdriver under the head of the yoke pin and wiggle it out of the yoke, thus releasing the yoke from the arm.
If unable to win that battle:
2 - Unbolt the inner pedal tube support bracket (4 bolts, nuts, washers visible in your video) from the floor pan and slide it towards the pedal side of the tube. Once that's pushed over, you should have a better shot at getting to that cotter pin, including bending straight the legs on the opposite end of the loop, to be able to pull the cotter pin and remove the yoke pin and yoke.
Hoping this will help you win the battle.
