Real cost for me: one full weekly limit on Max 20x. The $2,175 is the API-equivalent, and I didn't track it per feature, so I can't split it the way you asked. Closest I have:

$574 main session (wires everything into Unity and fixes it)
$1,601 for 161 helper agents (art, rigging, code, reviews)

98.7% of the 7.85B tokens were cache reads, it re-reads the whole project on every step.

Asset generation on Higgsfield API, ~$227:
$149 3D models from images
$29 3D from multi-view
$43 2D images
$5 other (login video, music)
rigging was free

 All in ~$2,400