From fitting nose weights are a very good idea.
modelingmadness.com/.../terryweights.htm
Another way to reach him is to go on Hyperscale or Modeling Madness and put his name in the thread title.
Edit, here is one source of a "weight Powder"
http://www.bulletswage.com/prtung.htm
just cut a plate to hold it, fill the nose, glue in the plate,,,,,,,,,,,or cut a plate, drill a hole, glue in place, funnel the powder in, glue something in the hole
Rex