I would think that 165 and up would be very decent, that translates to 5'5" and larger. 165 is about my lower limit. So 168 should be nice.
You describe something above, that you don't find in all brands and model of pianos, Outin. And if you like slower and melodic music and intermingling of harmonics etc, then of course what you are describing would very much be desired ( that long singing tone). C. Bechstein comes to mind as well, done up correctly, good strings, good sound board, proper tuning and voicing, it should have a bell clarity in the upper register and very rich bass. Bluthner to some extent, though it will probably be warmer in tone in the mid register and bass than the Bosendorfer. And much depends on the individual piano and how it was set up at that. It sounds like that Bosendorfer sings to your heart. Some of that singing may be how the pianist used the pedal too. Even so, if a piano can't sing then all the pedal in the world won't bail it out.
Again Estonia ? Hmmm, i don't know what to expect there, having no experience.
I bet you would love a Shigeru Kawai, very few used ones around and a new one more than twice your budget but just sayin. Again that clarity in the upper end of the keyboard, silk smooth action but crisp. I love them but surely they are not in my retiree budget !
I personally dislike a muddy bass and short singing upper register. Some builders seem to concentrate on that mid section tone and leave the two ends stranded. My own grand at this point could use re-stringing , especially the bass but generally it sounds very much like a Steinway O-L-M, somewhere between those. It has a powerful tenor to soprano and slightly above. The very top register a little woody but still sings. If I set the piano up with the top open coming out from a corner of the room, seating in the room facing the corner, then that strong tone will bounce off the wall and clock my right ear and it will ring for two days after. I have it set up instead to project across the room and that works fine, great actually, especially with the top up on the low stick. I also play it with the top down and just the music rack area opened up sometimes. That gives a slight muffling sound fairly warm tone. On a grand the sound board is on the bottom, a lot of sound is projected from up under the piano, you can feel the vibrations of that in the core of your body as it emits out from under. An upright has an open back and that hammers the wall behind the piano. I think that hammering would be more offensive to a neighbor than a melodic grand singing in the next apartment. If you have a dynamic grand you can play softly at that and with soft pedal you might mesmerize yourself in the process. And yet , sure open it up, get into the music and you could fill a concert hall.