If it was parked in a shed or barn, I'd be a bit concerned.
If it was prepared for storage and stored in a dry climate or nice garage, I'd be less concerned.
Unless a machine is properly prepped for long-term storage, it will deteriorate over time, even just sitting still.
After 8 years, I'd say most if not all rubber parts exposed to air will need to be replaced.
All fluids will need to be replaced as well.
The cylinders are ceramic coated, so rust isn't much of a problem there.
If the environment was humid, then I'd check all the electrical contacts for corrosion.
I all depends on how and where it was stored.