Tips for long term Engine storage

[Aquaticedge]

I had a OM617 Pulled from a parts car I have sitting here, It's attached to the Transmission. this engine will be potentially Sitting upwards to a year before the shop that will want it will need it. What are some ways I can have this engine sit without it getting some of the problems I've read about Ie stuck rings etc from sitting? I am also looking at doing the same thing with a spare OM603 Engine as well (it'll be longer storage as it'll be a spare for my wagon.