Is there a magic formula for spending on components in a system

More than 50% and probably under 60 % of the increased S.Q. will come from a rightfull mechanical, electrical, and acoustical embeddings...

Then choosing well electronic components without figuring how to embed them will be costly in dollars and in S.Q. in term of audio experience...

If money not an object, I'd spend an equal amount on each component. Each speaker is considered a discreet component. And wire, as a group, is considered a component.
Compromise (since few have unlimited money) on wire, amplification, room treatment and power conditioning. Splurge on speakers and source.
This is my master plan.