Since it's going to be out of use for a while, just do a good drain job, including the block petcock, and store it away dry. Get the radiator recored or repaired, and treat the old gal to new belt(s) hoses, and a water pump when you do a wake-up in the spring. Stored dry, there's a better-than-even chance the pump seal will leak when it's put back into service.
Jerry