@laoman You've put together a great list. I like all three of those brands. I have not heard the Pasithea, but I did take the Morpheus for a spin. I'd expect the Pasithea to be (even) quieter and more resolving than the Morpheus.
On the Mola Mola, I've been using an inexpensive ($100 range) XLR interconnect. The DAC only has XLR analogue outputs, but a pair of nice XLR-RCA adapters are included. I have a pair of honest RCA interconnects, so at some point I'll try the Mola Mola with those and the included adapters.
What system (amps / speakers) will you be slotting the new DAC into?