I used to store my car for years while overseas, and never had any issues. It was all in the preparation BEFORE locking the storage unit. Filled the gas tank (never used anything in the gas), fresh oil change, loosen the rocker arms (it was a big block Ford), put it up on jack stands. remove the battery, etc. When I got back about all I ever had to do was install a new battery, tighten down the rockers, and fire that baby up! She was always so happy to see me that she never failed me. You should be fine.