[Exim] SNMP and Exim

I'd like to instrument my Exim installations under SNMP via the UCD
SNMP server's external script feature. Anybody done this, or
something like this?

Ideally I'd like the same set of stats that eximon graphs, plus
perhaps max and average spool age. In searching the list archives
all I've found is an old comment from Philip not to use Eximon as
its an utter hack.

-- 
J C Lawrence                                 Home: claw@???
----------(*)                              Other: coder@???
--=| A man is as sane as he is dangerous to his environment |=--