My DC is a Delta AP 300, it works okay. I got it last year when they had them on clearance at lowes for $89. It doesn't move enough air to get much of the chips from where you see it attached in the pic. I usually put the hose under the bed so it picks up what falls on the ways and table, I just use it as seen when sanding and finishing to pull dust and fumes away. With it that way CA fumes don't even bother me.
Right now I just move the hose from machine to machine but my plan is to use a chip seperator and make 3 inputs with blast gates.
Good call on the TS, I used 3/4 ply so it would be heavy (for added stability), and the sides have my miter gauge on one side and box joint jig on the other. I have the pieces cut to close in the front and back but need to finish plumbing the DC through the back with a port to hook the hose onto. I also have a piece that I close up the back of the upper section but it has to be removed for bevel cuts.
I'll probably fashion something similar on the BS once I get around to assembling the mobile base. I'd like to keep the fence, miter gauge, sled, and extra blades hung on or inside it.
I try to use my vertical space all I can since right now I am limited to one car spot. I have lots of plans but I can't stop turning long enough to get anything done.