One quick hack of the source file to add in
asprintf (&command_line, "%s -Pu -t %d -r %d -m %s -v %s %s %s:%s %s",
and it works as well as can be expected. Raised a sf.net ticket to try and get something better propogated upstream.
Now working on a Makefile and a pile of shell scripts to automagically generate a set of nagios configs to check each node before Paul integrates it all with MonAMI. Crib notes and more info available on the GridPP Nagios Page