If I may, with station 3 being a "volunteer" station, tanker 1 should be switched with tanker 3(though personally I would like to see tanker 3 be in both stations, model wise). Engine 1 should be changed to a different model, while it may be different where your from, I'm in a very large metro area with easy access to rural and no depts.(they are all full time) have a dual rear axle engine. I personally like engine 3 the best but I do understand wanting a bit of change throughout so that everything is not the same. I would like to see an engine brought in that is on the International chassis.