Hi Neil
Yes it is great that the 31 has been secured and they were working away on it to get it ready for the running season when I was in. As regard getting runs with it, im afraid I dont know how that would work or who is best to contact. It is probably something that would have to be organised through the main office. The 31 is out reasonably frequently so it may be able that he could coincide with a normal running day and get a trip.
Tim