APT-GET and SOCKS proxy firewall

[BOHICA <COfrog@toast.net>]

I'm having a bit of trouble with apt-get.

Background:
slink install from HDD
connected to LAN without trouble
installed socks-client via sneakernet and configured per the man page,
setting http and ftp for port 1080 in socks.conf
can successfully pass through firewall with minicom
read the man page for sources.list and tried both set $http_proxy and
http://proxy:port/

apt-get generates "403 Proxy denies fulfilling the request" when trying
to update Packages.gz

There is not enough space on my LAN ftp point to drop the Debian archive
and the PC has no CD-ROM.

Help???