All cars look pretty god from what you can tell from those ads... I think I would go in order of no 3, no1,no 2 and 4.. I am partial to the 69...but it looks great, has nice top, clear plastic,hood tach...price seems fine...Looks like mine (but maine has no tach)! the 67 red is nice , is convert.,price is good.. the 68 coupe is very nice , but drawback in my mind is coupe , not convert.and black is hard to keep clean...looks great when just washed ,but only 20 minutes later... the 4th car is pretty high in price ,even if matching no`s , but its still not a 'clean' car...not right wheels. I think the 69 or the first 67 is what I`d pick..
but you have to look them over to see in person, hard to tell if any was in wreck or how fixed...look for rust or bubbles, behind rear wheels , just in front of doors at front fenders, trunk, floor pans ,see if you can get them on a lift...check out under ,drive them ,feel out how the engines run/trannies shift.
see if you can get someone who owns one to go with you when you look at them , maybe one from this site thats close by....someone who`s been thru it before , can check all the 'typical' spots... but it looks like you have a great selection to pick from ,wish I had had that nice a collection to go over when I bought mine..