I have forgoten to say, that I do live and work in Poland. Thats why costs of casting are very lov. Its about 20-:- 30 Euro for 1 kg casted bronze. I think my sculpture will weigh about 20 kg. I have a good specialist, who can make a very thin cast.
It would be a heaven for sculptors, but here is not easy to sell works, especialy for a good price. Poor country, poor artists.
Thank you for information anyway, maybe some day I will come to USA and make a good use with it.