I did It on a Ms lvl 50, in team with an Ed lvl 50 aswell; but we were lucky because there were people hunting un the cave, so we kept throwing runes in every mob we saw while we killed them on our own.
It is possible to do it at that lvl, OFC you Will have to refill several times and waste a lot of supplies.
The most dangerous part for me was to kill the Boss, because we had to run all the way without killing any monster because otherwise we would had arrived It without supplies. And to get out we had to use the free teleport scroll.