i copied the dump from pelix and am importing it into a fresh svn repo at the moment (to avoid the load on the network as the git import will then checkout each commit one at a time)
I may be wrong here, but I think the stuff on pelix is some playground or similar and that Marcus' imported Pike repository resides here:
https://svn.lysator.liu.se/repos/pike/
Someone around here is probably more informed than me, and hopefully it's me misremembering and things are the other way around. :-)
for the git-svn tool it would be most convenient if all branches lived in the same directory. i'll attempt to move them around. (if you have a quick hint how i can achieve that, i'd appreciate it)
I think the way to achieve this kind of thing with subversion is to use its export-to-xml feature and work your magic on that before doing an import-from-xml. I haven't tried, though, so that could be a rumour.