From your selection, you could be in the USA. There are thousands of high quality console pianos from the 1946 to 1980 going to the dump every day. Most were used as furniture, not musical instruments. Brands I find very pleasing are Baldwin, Wurlitzer, Hamilton by Baldwin, Sohmer, Steinway, Everett, Mason & Hamlin. Steinways could have been used by a school or college, so you don't want a high usage unit like that. The thousands of hours of practice could have worn down the hammers in the middle (visible) and the hammer pivots. These brand names except Steinway after 1980 were recycled by their purchasers to sell their second line and third line products, so don't buy anything that new. Don't buy any console shorter than 39", although Baldwin 36" acrosonics can be fast enough for a student into their fourth or fifth year.
check every key, check for buzzing, visible cracks in the soundboard (back) broken strings, scooped hammers (high wear) or hammers shafts that are not straight. Don't worry about out of tune, as most of these units are neglected. Try to see if one note sounds good, with the three strings in tune. Listen to the match in tone between the 2 string notes (middle bass) and the three string notes.
On craigslist, with your own movers available, prices go as low as $100 if you can move fast. At a reseller working out of a flea market (there are two here in Louisville) expect to pay more like $600. The reseller will have rough tuned the product.
Talk to your local tuner. Problems? Neglected pianos have to be tuned, my 1941 Steinway purchased in 2010 was last tuned in 1966, and took seven passes before tuning was to standard and stabilized. then 2 1/2 years of great intonation without maintenance. I paid $1000 for it, have seen cosmetically superior exact same models on E-bay for $5500.
Use searchtempest.org to scan the craigslist, e-bay, and facebook ads within a certain distance for a piano with a picture. This is fast because pianos show up in the musical instrument, furniture, antique, and other random categories. Be wary of e-bay, as moving a piano over 80 miles is very expensive.