Don't know that this is big enough for your needs, but I think it's
a decent price. Ours is the Kerr standard (small) manual electro-melt
The melting capacity is gold: 30 troy oz and silver: 25 troy oz.
A friend used it twice and used his own crucible. So the original
graphite crucible is unused. We never used it and it is in mint
condition. We're selling it for $410.00.
Otherwise, I hope you find what you're looking for!