The year and model of your Workman would make a big difference to what you need.
I purchased 4 and ended up only getting 3 doors to a Toro Workman cab. They are not the same as what is on my Toro Workman (Mauser Cab) but the hardware looks very similar, which probably means it is for a later model than what I have. I sold the cab unit I had that had a full glass passenger door on it.
My plan is to use the window out of one of the doors I bought to make a window in the passenger door. Currently my thoughts are to build another door and install the window to get a little more ventilation in the cab. Door isn't too hard to build, just 1x1 square tubing if I use the hardware from the later doors but right now I don't have time to do that. There just needs to be more ventilation in the cab. My cab has a heater, and if I don't pull the heat, I can just turn the heater fan on and it blows fresh air around the cab. That helps a lot.
David from jax