Replied to your PM. Primary difference between the OE manifolds is the 60 - 62 used a flat flange for the exhaust mounting surface vs the donut style for 63 and beyond. If your 200 came from a 70 Maverick, and the 70 manifold was used, it is the donut style.

Only other concern is manual/automatic choke, to me it wouldn't matter, but to you it might. If you have a manual choke, you can use either one. There are ways to make an automatic choke work without the heat tube (fab a heat stove) if you're so inclined.

I'll know later today which specific manifolds I have.

As with anything used, no guarantee future failure won't happen, then again it might last the life of the car.