Be carefull not to forget about the "2 degree drop lock" on 8020 tslot. As talked about in the lower video here. That could result in your rack and pinion being out of alignment by 2 degrees.
But otherwise looks like a good compact setup. I have looked at your products and they have been intriuging but I am currently building my first Router out of MDF and using V-rollers.
Keep up the good work.