I have found what is possibly two 261's in central NC. One is in a 54 truck and the other is in a 57. The owner says both are straight six motors and he will sell for $150 ea but the buyer must pull them out. Other parts are also for sale. I want the 57 motor, but I can not pull them by myself. Is there anyone here within driving distance of central NC that is interested in the 54 motor, or other parts and would be willing to help. I have not looked at them, but can meet you some place and go see what he has.
These links are pics of the trucks.

http://s858.photobucket.com/albums/ab147/jdaniel171/?action=view&current=1957.jpg

http://s858.photobucket.com/albums/ab147/jdaniel171/?action=view&current=1954.jpg

Let me know here or by e-mail if you are interested.

Joe D.