Order of importance and budget percentages

So you already have passive speakers @systembuilder ?
The speaker cables are generally more important than ICs, expect maybe TT IC.

I would go 50 to 60% speakers, 30 - 35% on Pre/power/integrated/sources, that should leave about 15% at least for room treatment, and maybe 5% for cables and power conditioning. Don’t spend more than $10 on Ethernet. Uptone and other products are 100% snake oil. 

I’d spend $20k on speakers, $10k on amp/pre, $10k on source, $5k on cables, and $5k on a power conditioner for a $50k system.  Just a rough guideline, but adjust as necessary as overall system balance/synergy is absolutely key.  I left out room treatments, but they’re likely a necessity as well to get the most out of the system.  

@soix +1 

My breakdown is similar - budget and breakdown.   And I expect my system may evolve in the future; however, I expect my cables /power accessories are my forever cables.  

@overthemoon I hear ya, but I’d never use the word “forever” in this hobby — it’s both a fantasy and the kiss of death.