700 mile round trip with only one issue: at some stage someone had replaced the Nylock nuts that hold the air compressor in with machine screws. 2 had come out, one never to be found and the compressor was making a horrible racket. Thought it was failing at first but once I had the box open I realised what had happened. The thread is M5 for those that are interested. Stopped on the way back and bought some threaded bar and Nylocks to go on it and will get it back to standard when I get a chance.