Hi, I used to volunteer at Duxford. The Stuart Gun tractor is a good runner. The Cent Arv I did get running, will need a lot of attention been left outside too long. The Conq Arv I have seen running, it was a beast. It pushed a Cent Arv on tick over. The 2S1 was a good runner, nice to drive, needed the odd hose fixing that was about it. The Zil truck was bought to wet down the running area on show days, guess they don’t need it anymore. The Cent MK3 has always been kept inside, never seen it run, but it looks very complete.