Thanks for the comments, guys.
You can change the timing of the motor for clockwise rotation. It's simple to do. You take out the four bolts holding the brush end on, rotate it to the CW position and put the bolts back in. They have tapped holes in positions for CW, CCW, and neutral timing.
Yes, the standoffs will see some torque. I have a pocket machined into each plate and I faced the ends of the standoffs with a lathe, so they should all sit flat. I'm hoping they can handle the torque.
I'm going to be using a Kelly 650 amp controller. I have a kelly in my electric motorcycle and it's working well for me.
I'm hoping to get a 30 mile range. I base this on what I have read of similar setups online.
I hoped to get more done today, but I'm sitting in jury duty. At least they have wi-fi.
I've spent my time designing my pot box. When I get out, I'll go to the shop (where I work) and make some parts.