I've been looking to buy a piano and these 3 Yamaha models have caught my attention. They are all used pianos, m5j and m1j from early 80s and c108 early 90s. Which piano would recommend me to purchase? Does anyone have experiences of these pianos?

The sustain pedal seems to be a little loose on the m5j. Is that a sign of a bigger problem and is it something that can be fixed easily?

Hi everyone