Have you considered a moderate player (e.g. The newest Oppo) that outputs USB into a killer DAC of your chosing instead of a single CD/SACS player? Or are you looking for a player that accepts asynchronous USB digital inputs or better yet FireWire inputs? With the DAC acting as the master clock to the standalone player, I think it reduces the dependency for a high-end player, hence the suggestion of a moderately priced player. You might also wish to consider Pro gear like Metric Studio, Prism And DAD that offer FireWire inputs and offer much better value than over priced audiophile gear.
Just another option to consider . . . .
Just another option to consider . . . .