Scott, I can understand the inability to audition the ZYX. So I assume that this means you will have an opportunity to audition the Dynavector, Lyra, Ortofon and Sumiko in your system. Why not just audition the ones you can and pick the one you like best?
FWIW, I do respect Art Dudley, but I have owned the Lyra Helikon, Koetsu Rosewood Signature, Benz Micro Ruby 2, Cardas Heart, Dynavector XX-2, and several others that escape me. I've also heard the Jubilee, but not the Celebration. All of these cartridges were worthy and had good qualities, though none were on the level of the ZYX Airy 3, IMHO. I have since moved on to the UNIverse.
IMHO, your best bet would be to be patient and save your pennies, and then buy either the ZYX UNIverse or a Dynavector XV-1s as your funds allow. As good as your phono stage is, it really needs a top flight cartridge to shine.
Cheers,
John
BTW, I still advise against buying used, even from the original owner. There is no way to know how accurate his guesstimate of age/hours is, let alone if the cartridge had been set up and cared for properly. Just my $0.02.
I'll buy most of my gear used, but a phono cartridge is not worth the risk to me.