Ola, I have a car with more than a year and a half without turning on, I have thought about it on again, but I have thought that I may bring problems in case any packaging or something inside the engine has already been damaged
If before leaving it without lighting you did not give you any problem you can turn on it only change the engine of the engine and transmission as well as the refrigerant liquid
What I would do would be to dismant And if it goes soft, put the spark plugs, check it levels and battery and start. It seems nonsense, but you will avoid scratching the walls of the cylinders or that you break some segment. Greetings!!