Feelings on Steinway model L

[Fingerz_Xtrodinair]

Im in the market for pianos as you all know and i was wondering what i should pay for a used steinway Model L. Its in good condition but since im not a techinician i cant really tell if the soundboard is busted or if theres a bad flange or any other of the million things that can go wrong with a piano lol. Ne help is appreciated