The MJSA show guide is a great resource for that type of project.
MJSA is also helpful if you call them on the phone and ask for what
you need in particular.(they will send or fax a list) I would also
recommend contacting a caster in the Rode Island-Massachusetts area.
Another silver caster to ask advice from is Joe at Ampex casting on
47th st. in NYC, or rw manufacturers in Rochester New York.
I hope this helps.