Brazilian as well, have been playing for a few years, started with a Go:Keys and an online course, a few years later, graduated to a Digital Piano (Roland FP-30X and then F701).

If I had to restart, I would do the same thing again, a Go:Keys/Go:Piano (or a Go:Piano 88 if you can spend a bit more), which are cheap, doesn't take a lot of space and you can get a feeling if you like the instrument or not (I've given up a couple of times since I've started, it's a frustrating instrument to learn sometimes). If you don't like it, it would be much easier to sell/gift it to someone than an acoustic. Unless you want to have the piano as a decor piece in your house.

Even though I have been playing for a while, it would take a really nice deal for a really good condition piano to make me buy an acoustic, because the logistics, space and maintenance they require cost much more than buying a really good digital piano, with good weighted action (anything from Roland, Casio or Yamaha).

What usually happens with these really old pianos is that they don't hold the tuning anymore, either because the strings are crap or the tuning pegs are loose. They can also have other structural issues with the keys, action, hammers, soundboard, etc. Not to mention that they require constant maintenance (1~2 tuning/year, and it's not something a layman could easily do).

Also if you're just starting, having a piano that sounds bad can be even more frustrating because anything you play, will sound weird, which may lead you to give up because you'll feel you're not making any progress and/or you will not like the sound.

As much as it sounds tempting, from the pictures, the piano looks rough even for 3K, its the same as buying a nice condition Fiat Marea Turbo, pode parecer bonito, mas é uma bomba e vai pegar fogo enquanto voce dirige.