'perl' is searching libraries, modules using info
from the binary 'perl' e.g. /usr/bin/perl .
The best setup is of course a chroot environment
( with all your "arm" files )
But a workaround may work : a temporary rename
of /usr/bin/perl to e.g. /usr/bin/perl-5
With only the binary "arm perl" around,
no disturbing "i386" files should then
be picked up.