Are you planning a stock rebuild?
My plan is to fuel inject the 318 for modern performance and put in a 518-OD or convert it to a 4-speed. I'm collecting all of the parts to convert it and only need the shifter linkage now. I love 4 speeds but picked up 2 518s last year. The car will be Pace car orange with a white interior. I might put a rallye hood on it. The car was a factory A/C power steering, power disc brake, power windows and top. It is all numbers matching 318, 904, 8-3/4, but nobody cares about g-coded cars, so I will modernize it a little to drive it far away consuming the smallest amout of gas possible.