Please evaluate my system...

If I was to improve that setup, it would definitely be the front end. 

Michell Gyro SE
Lyra Delos
Parasound JC3+

Denon cartridge and Linn Linto are the weak links by far. 

I agree re AC mains. The biggest improvement I ever had was adding a dedicated Hi-Fi ring main from the mains fuse board (I am in the UK). The old house power outlets which connect to the other house sockets remain and sit next to the new dedicated Hi-Fi ones. This means I can easily A/B demonstrate the difference and everyone I do this to is amazed at the difference.

Some say say you need thick cable but I just used standard internal wiring. I found no need for expensive sockets: I put 3 double sockets in the Hi-Fi mains and I tried one soctet with gold plated contacts, and two standard sockets - no difference between the two.

Total cost = £600 ($800). Amazing upgrade.

The thread is really useful. Will look up about the mains side of things. Confused about the Michell Gyro SE recommendation this is a fair bit cheaper than my current VPI. What makes you think this needs replacing?

I’m on my way over to your place now. The only way I can tell is to hear it. ;^)
And I'll be glad to remove any component that detracts from the others. ;^)  ;^)

I myself would lose the Cartridge  I like  M Coil