sony scd-777 dac vs PS Audio DLIII DAC


I have the sony scd-777es (without mods) which i want to improve... I am getting a great price on a new PS Audio Digital Link III. Does it make any sense to use the sony as a transport connected to the PS Audio DLIII? In other words, is the DAC in the 777es better than the PS Audio DAC?

If the sony's inbuilt dac is not better, then would level 2 mods on the sony be a better use for the money than the PS Audio? The sony's slowness doesnt bother me, I am only interested in improving the sound. thanks
aarif
Just bought a Sony XA5400ES. Listened to alot of high end SACD players. My demo disc must have been in $300,000 worth of hardware.
The XA5400SA is a good deal for the price. Out of the box it had great mid/low range with good punch on drums. Sounded a bit metallic in the upper ranges which is softening up as I add hours. Real PIA to break this thing in on both RB and SACD and balanced/unbalanced outputs.
The RB is close to my Benchmark DAC-1 when the Sony is used as transport.
Will probably sell mine when I get some dough for an Esoteric P-03/D-03 or EMM. Heard he new EMM TSD1 DAC2 at CES. It sounded so much better than the CDSA SE that I couldn't consider the one box player (which is great).

So for low money I can't see what can beat the XA5400SE on SACD with good RB to boot.
The Sony will continue to perform at a higher level after breakin and with a PC like my Transparent MM reference and my new MIT V1.2 Proline interconnects....Esoteric and EMM dreams will fade fast:O)