Some time ago, I ported https://github.com/alloy/git-svn-mirror written in Ruby to Python at https://github.com/mloskot/pygit-svn-mirror
It makes it easy to create and maintain Git mirrors of SVN repositories. Perhaps you'll find it helpful.
Svn2Git requres a copy of the svn database. KDE uses rsync for that purpose; we might do the same. Is rsync enabled on svn.boost.org?
It is but you shouldn't use rsync to copy a live database. I already used svnadmin dump to stream a mirror into existence on ci.boost.org, and if you'd just help me close #1 I could get you access to that... ;-)
OK, that mirror is now updating every 5 minutes; see #6
Built svn2git on ci.boost.org:
mkdir -p src
aptitude install git-core
git clone git://gitorious.org/svn2git/svn2git.git
git clone git://anongit.kde.org/kde-ruleset
aptitude install libsvn-dev
aptitude install libqt4-dev
qmake && make
Daniel produced an initial sample for Boost.Accumulators