If you're open to modding, I'd also recommend doing something with Steve Nugent (Empirical Audio), although having been familiar with the Arcam FMJ-CD23 (owned one for just under 3 years), I'm not sure if it's a good candidate for modding given how compact everything is inside. I use a modded Sony S7700 from EA with the Dodson DA-218 (and have used it with the DAC-263) with excellent results. Note that even with the Dodson's reclocking, the turbomod and SuperClock2 options on EA's S7700 mod do have an effect.
If you're not into modded gear, but are willing to try used, you might want to try out a Sony SCD-1 or CEC belt transport (forgot the model). I tested the DA-218 with the CEC and was impressed with the results. Have not heard it with the SCD-1, but Ralph Dodson himself uses the SCD-1 as his reference transport...he feels that DVD players and SACD players read data off the CD better (because DVDs hold so much more data, the tracking needs to be much better...and he also said something about the angle at which SACD data is burned into a disc also makes for better tracking), and as long as the SPDIF output section is of high quality and true 75ohm, it should be ok.
If you're looking for something you can buy new, I'm not sure how much I can help; I'm delivering a DAC-263 to a customer on Saturday who will be using a Sony DVP-NS999ES as a transport, so I will have an opportunity to evaluate that.
Just curious...how long is your digital IC? Per Steve N's recommendations, without the EA mods I'd make sure you're using at least 1.5m...I recently had the chance to A/B the same cable (Acoustic Zen Silver Byte) with a 1m and a 1.5m on an unmodded S7700 transport with the DA-218, and the 1.5m was a clear winner (validating for me Steve's explanation of why it makes a difference)...