Thanks ascj and SASless,
Bell 47 have problem with the spare parts and for the support. In south america there not on the air anyone. So I think will be a problem to work with them. There are a few of h269 and s300 in south america, but schweizer factory still produce it and have the support with spare parts.
Anyway, I know very well that the best option will be B47 or UH12E !. Regards