The Wright mods are a must. I've owned both the bitstream and the bidat and the mods put both units in world-class territory. I also second the Moray James digital interconnect recommendation. I think the cable is equal to the mods because moray's design is part of the mod process.
I have used a CEC belt transport with the bitstream to very good effect.
I have used a CEC belt transport with the bitstream to very good effect.