Steamwolf - thanks for the input that the cars are Hafner appreciate the data
George S. - same, thanks for confirmation on Hafner
Robert S. Butler- WOW no wonder I was confused between Hafner and AF, they really are very close. Your pictures especially of the Erie car make them almost identical.
Everybody sort of agreed that cannibalizing my cars was not so good an idea, since parts would likely be available and since I only need wheels and couplers, even junkers would probably yield what I need. I intend to take your advice, thank you for your thoughts. By the way, George S felt that AF couplers would likely work...he is right, I tried it with some of the 1107 cars I have with AF tab and slot couplers and they would work.
thanks again everyone
Don McErlean