After researching the spare 1960 196ci engine that came with the car I was convinced to find a newer 232ci to swap in. The 232 should be easier to fabricate motor mounts for. The parts are easier and cheaper to get, and it should perform better that the old 196.
I needed to find a 1968–72 engine that would bolt to the 1963 bell housing of my existing transmission. CL to the rescue, I found a rebuilt engine from a 1968 Javelin an hour and a half away.