Hi Luis ,
Iīm in a similar situation as yours ,Argentinian/Italian citizen FAA ATP with 1700 hours ,unfortunately not being in possession of at least a green card ,USA is a no-go. I live in Spain and have been looking into converting the Faa to Jaa and the cost would be about 5000 euros ,but I donīt know if itīs really worth it at this time. You could also try Africa or middle east if you donīt want to convert to jaa.