I was there today with my 2yr old daughter, we had to cut our trip short because my 5 month old had a high fever and we headed back to Fargo to find out what his prognosis is (nothing serious just a stomach virus).
I did get a chance to talk to a real Allis Chalmers fanatic and it sounds like I should ad a wd or wd45 to my stable. There were a lot of nice ones there but this one really 'did it for me'.
I could learn to live with the 1 way cylinders but I don't know about that trip bucket.. I'd have to reconsider that 'feature'.