Welcome from Virginia, Mariano. I hope you will feel at home here and visit often. There is much to be learned and this is a very simpatico bunch of people! As for that lovely little Chiefs Special, that's one gun virtually everyone here thinks of as desirable.
Most of what I know about Argentina is from reading History and historical fiction (adventure stories.) So I have to ask, do you have shooting clubs and ranges readily available where you are? What is your ammo situation there? For the moment it's very sparse here, but normally 38 Special ammo is one of the more readily available kinds.
Again, welcome!
Green Frog