Guidance

Some advice please

On an upgrade path but current system is

Oracle, CD3, 102, Supercap, 250 and N803

Upgrades planned include 52 to replace the 102 and CDX/PS to replace the CD3
Also plan to use a Fraim.

Am trying to source recent examples secondhand with little luck. Perhaps improve after the show.

Questions:

What should I do first the pre amp or the CD?
Is the CDX going to be enough or should plan a final move to a CDS2?