what, where did that Data Bender come from. It isn't permanent right, or?
-- cpaf
It'd better not be permanent, because right now you're missing pretty much ALL necessary utility modules, and some critical modules (such as a proper complement of VCAs) are nowhere to be seen.
If you've not gotten the A-100 cab already...don't. Tiptop's Mantis cases are bigger, have about the same power specs, and cost way less than Doepfer's cabs. The Doepfer stuff is great if you need depth, or if you're planning to take your rig on the road, but if the build is intended mainly for studio use or only occasional live work, it's just about perfect.
And yes, you can expand the Mantis via a link bracket to have two of them stacked. Plus, going to 2 x 104 gives you 40 more hp to put some of those modules I mentioned above into this so it'll work like a synthesizer and not like an expensive box of noisemakers.