Welcome, just wanted to warn you that 99.9% of the time these old engines will come back to life, but will still need some major mechanical work. I've had good luck with 216's but all my 235's smoked after bringing them back to life. I would also suggest pouring oil over the rockers/lifters, cause if there stuck you will bend the pushrods. Fresh fuel, cleanup the points/plugs, you may have to pull the plugs 2-3 times to clean them from all the oil. A strong battery especially a 12 volt on a 6 volt starter will kick it over. You may want to pour oil over the rockers for about a week before you try to turn it over, and I assume you know it turns over easier without the plugs in provided it has any compression.
