Thanks all. I appreciate the comments on the integrated front, but my purpose here was to discuss a simple amp/DAC preamp set-up as an alternative to the Peachtree. If I'm going to go integrated, I'm going to get the Decco65 at the refurbished $599 offered by Peachtree itself. Seems like a pretty unbeatable deal. I have looked at the Outlaw (would need separate DAC anyway, don't need receiver element and not a huge fan of the look), the Music Fidelity (need separate DAC), NAD 3XX series (not as well reviewed as Decco, more expensive to get the newer DAC on board), and so on.
On the other hand, IF my original assumption was correct, and basically any amp in the lower power stereo Emotiva A-100 class or similar used would provide me plenty of power and quality at ~$200-300, then it might be more interesting and fun to spend $400-600 on a separate DAC as a preamp and start a basic separate system from there. Question was whether there are concerns with that (vs. an integrated like the Decco65) that I should be thinking of other than the obvious aesthetics/convenience.