Hey Steve, we have a '79 Fire Arrow engine sitting in the garage, complete. Pulled it to convert the car from auto/2.6L to a C2 Safari 1.6L drivetrain (which is now happily residing in NH...). The timing chain was broken in the 2.6L when we got the car, and it has about 150k miles, but it's free to you, to contribute to the cause.
Also, we ran across a couple of pix which I think are of your car 'in the day'. PM me here if you want the engine; we'll figger out to connect sometime. (I have a project near Lousville in 4-6 weeks.)