manual Packages file download?

[Zenaan Harkness <zen@freedbms.net>]

I keep getting (tried 3 times now) this sort of error from my chosen mirror:
---
100% [15 Packages 9,119 kB/9,119 kB 100%]
Err ftp://mirror.aarnet.edu.au sid/main amd64 Packages
Get:17 ftp://mirror.aarnet.edu.au sid/main amd64 Packages [6,829 kB]
Err ftp://mirror.aarnet.edu.au sid/main amd64 Packages
  Unable to fetch file, server said 'Failed to open file.  ' [IP:
202.158.214.106 21]
Fetched 376 kB in 33min 45s (185 B/s)
W: Failed to fetch
ftp://mirror.aarnet.edu.au/pub/debian/dists/sid/main/binary-amd64/Packages
 Unable to fetch file, server said 'Failed to open file.  ' [IP:
202.158.214.106 21]
E: Some index files failed to download. They have been ignored, or old
ones used instead.
---
I need this mirror, because I am on a frugal wireless connection, and
need to take advantage of the unmetered zone.

Is there a way I can manually download the appropriate file?

TIA
Zenaan