Old timer/newbie/Crown questions.

Okay guys. I started using analogue stuff in the 70's. Crown real to real, pre amps, amps, equalisers, the whole nine yards. Now I am 58. Thekids are grown and gone, and some of my stuff is just plain old. Needing recaps, pots cleaned, etc.
My SX 700 was rebuilt by that old factory tech guy before he passed.(I forget his name now).
My B&O 6000 turntable sees SoundCraftsmen every 10 years for a clean up/tune up.
ATE will restore my IC-150 preamp, and will still do DC-300A's.
No one has parts for my EQ-2, VFX2A, or my smaller D-150A's.
Now the questions start:
Should I have my EQ-2 gone thru by some tech/geru, or dump it for a new DBX unit? (Or other)
Same query with the crossover.
Rebuild a pair of DC-300A's to bi-amp my 846B's, or does Crown have an equal/better spec amp now?
I have no idea who makes good stuff, or what direction to go. I am willing to bet someone here will know, or have 40 opinions. LOL