Having pulled and installed an engine several times in a 1953 210, I would also advise pulling the engine and transmission as a unit. There is nothing to support the forward end of the transmission, and it will be a pain to get the transmission input shaft to slide back into the clutch. I connected a chain sling with two convenient head bolts. This operation was not difficult, as I recall from 45 years ago. It is even easier if one uses a good engine leveler, such as sold by Speedway motors.
