I'll let you know how it all comes together. I am not too worried if things aren't perfect first go. I'll just pull the unhappy module out and stick it somewhere else in the future.

In the same vein, I'll go with the A-138D, and pick up something with two channels if I need it down the track. I'm in no particular rush.

With regard to DAWs, it looks like Bitwig might be the best option (that I currently own). Otherwise I might need to buy something like Silent Way for use in VCV. I also have Cherry Audio's Voltage Modular and Softube's Modular - maybe they work? I'd have to take a look.