Hi!
I don't know if there are other pre-built binaries (I didn't look at the
download pages). In any case, it is explained at
http://doc.sagemath.org/html/en/installation/binary.html#linux how to
install from a pre-built binary on Linux.
However, provided that the prerequisites mentioned at
http://doc.sagemath.org/html/en/installation/source.html#prerequisites
are available, building from source shouldn't be much of a problem (I
did use openSUSE till a couple of years ago). It just takes some time to
compile.
Note that you don't need root access. In fact, it is recommended AGAINST
building Sage as root, which is also mentioned in the installation guide
(i.e., the pointer above).
Best regards,
Simon