Glenn, Yes, the seat was turned around and on a separate (raised) platform. My grandfather had four of these machines on the farm southeast of Bakersfield, CA. Two were on M chassis and two were on Super M chassis. Only one time did he remove the basket and platform to use it as a row-crop tractor. It was just too much hassle to change back and forth. I'm not certain how travel direction reversal was accomplished but I do know when it was changed over there were 5 speeds in the direction the seat faced.
The belly pump operated two hydraulic circuits through a selector valve. One circuit raised the drum and the other dumped the basket. Being single acting, the basket had to be pulled back over center by hand if you were parked on an incline.
I remember spending many hours perched atop the blower housing behind my Dad watching row after row of cotton disappear below him. As a kid it sure was neat to spit over the side from that height...until I got caught one time.
It was the first piece of machinery I ever 'steered.' He told me to keep the row going between those "pointy things" in front. We quit growing cotton by the time I got to first grade.
There is a good picture of one on the back cover of Red Power magazine a couple of issues back.