@halma: IF memory serves, the svn.tcz package contains both svnserve (server) as well as svnadmin (client) and associated tools, but I remember having a glitch with using https. Back then I read somewhere that wget by default runs through busybox and isn't a complete replacement, so I installed the wget.tcz and that seemed to have done the trick. Mind you, this was a long time ago so my details may be a little dated.
To accomplish the above (from the prompt):
tce-load -wi svn wget
For testing purposes, you may also want to add cadaver to your list.