Is it too ambitious of a beginner project to try and do like, a BantamDAC and Mini^3 or Pimeta in a single enclosure? Note that my experience with casework and surface mount soldering is zero, not even having made either standalone.
I think the casework is going to be the hardest part of this, based on what I've read from past DIY stuff, and I guess the question boils down to "is the casework for two-in-one a bad idea to do before doing a single?" if I'm not mistaken.