Those MR Geeps are great engines. Especially in tandem. I remember the one horn has a double chime to it. It is very easy to change to electrocouplers and is a fun project. Once you do one it is a piece of cake. Go for it.
At one time I had every TMCC Geep on the list. They never made the GT or the Army one. I agree that the changes of features in these engines does tell the story of the evolution of TMCC. Great engines. I have my favorites. The custom series ones with the drag racing sounds were a blast to play with.
