Better still would be a xport with I2S out. The I2S protocol strips out the U bit, and may negate the need for a jitter device. But a jitter box may be easier to come by than a xport with an I2S output. Camelot made such a device which I once owned but another fellow really wanted it so off it went. My dac did not suffer too greatly. I have a Muse too, but not a 2+. It is still a great dac, esp with the Bessel filter and balanced options. Good luck.
If memory serves me correctly, the Muse 2+ had a proprietary I-2-S connection, very similar to the Sonic Frontiers I-Squared-S-enhanced interface in their Iris 3 transport and Processor 3, but not exactly the same. The I-2-S that Camelot used was a round 6 pin and the Alchemy and Perpetual Tech units used a mini-din 5 pin. As mentioned in a previous post, I think your best bet would be to look for a matching Muse transport. Again, if my memory is correct, it was the Model 5. I think a few of their DVD players had this I-2-S interface also.