Excuse my ignorance, but isn't weight, scale and dynamics all part of the phono-pre, pre-amp and power amp? Do your other sources give you the sound you are looking for?
On my system, all the sources sound about the same, in a blind test not sure I could 100% tell the different sources apart.
Looked up that suggested cable, it's $3k, it better make a huge difference, it cost more than my entire TT. IMHO, cables are a tweak, not a drastic shift like chaining components.
To get what you are looking for, would it not be only better spent, getting a new phono-pre, cartridge, or even a EQ to put in the chain?