What is the system? You may be able to setup a chroot jail anyway, or request it from your sysop.
Using the chroot jail is pretty much the only workable solution right now, getting all the 32-bit libs and binaries in all the right places is a major pain. You could also use a virtual machine with 32-bit OS installed (perhaps your system provides some virtualization?), simple/short tasks probably wouldn’t suffer terribly from the speed hit in a VM.