I have a dust collection system rigged for my other woodshop tools, so I imagine that at some point in the future, I’ll connect it to the CNC in some way, shape, or fashion.
As for bed flatness, I have to imagine its movement is negligible in this case. There’s a lot of center support under the torsion box and I surface the spoilboard after I moved to its permanent home and leveled the cabinet. I checked it with a straightedge right after surfacing it and did’t see a single gap. However, I’m also trying to manage my expectations as to the degree of precision I can coax out of this machine. I have the tendency to start chasing my tail when I want it perfect!