What is today's best CD transport in the 4k-6k?

I heard before the answer: Barclay! Although they may be good and you can find some from time to tome on Audiogon, I am much concerned with maintenance issues about these since they are not manufactured anymore. So, who's left in the 4k-6k price range [used]: Burmester 979, MBL 1521, CEC TL1-X or TL0-X are the model I am considering. Any guidance anyone?

Note: I own a Mephisto IIX CD-Transport paired with a DAC-64, but I am also considering the DCS DELIUS or ELGAR for DAC.