I think it would be great to also include sidecars like in Neuroparc's specification, but I think that's a follow-up to this, not necessary to resolve this issue.
For the renaming acceptance criterion, I think it would be useful to make a CSV (or some other format) file that handles the mappings, so it's both machine- and human-readable without a lot of digging.
Related problem
The filenames are currently not following any consistent pattern (the macaque files are nearly in BIDS):
Proposed feature
Rename all these images following the BIDS specification
Acceptance criteria
Alternatives
No response
Additional context