Welcome to the forum
If you're asking if the engine and trans can be put into the truck, then the answer is yes they will fit. Although, I don't know how good of a rebuild you are going to get on a 700R4 for $495.00. A quality rebuild on one is typically 3 to 4 times that much. The engine is hard to say since it does have some miles on it. Would be better if you could hear it run. Oh and that truck isn't a '63. It's a '64-5-6....by the fender emblem it's a '64.