N gauge cross country DMU Graham Farish Class 170

Hi this is for an N gauge graham farish cross country trains 170 dmu. I had bought it for a project that never materialized so I've never run it. However I saw it run in the shop when I bought it.
It's in good condition but not been run in nearly 2 years. I've never had anything to run it on. It has spent that time in the box though.
Thank you