Hi Phil, that is typically why I have always only modified the higher end Oppos.
The Sonica DAC is of interest, but I don't know how many people JUST want a DAC.
The Marantz SA8005 is a CD/SACD player WITH spdif, toslink and USB DAC inputs for up to DSD2! And it sounds FANTASTIC as DAC and player with our mods!
Thanks,
Dan