Carousel and frame

since we’re doing my olds ne generalresto, I wanted to ask if someone can tell me tips and tricks if I want to lift the bodies from the frame. because really everything should be done on the car, I want to have the frame galvanized. what problems could occur ? what preparations should or must be taken ? get the “rubbers” that are between the bodies and frames without problems ? if yes, where do the costs of the dinger ? I am grateful for every tip. thx + lg current condition of the cart 😉