James,
yes, the axles are too close to the ends of the coach but then axle location is decided for when using the stock starter set coach frames. Ideally, also the roof overhang at each end should be shortened. I had around a dozen or more of these but have sold most of them off except for a few #3060B cars that I am repainting in green 'DR' finish as per recent LGB/Marklin production (one may be painted brown just to be different). I also modded one with a guards/baggage compartment. See a recent posting for shorty 'DR' combine.
The car was really only built so that I could rob the trucks for another project. As with many of my 'creations' I juggled spare LGB parts around to get something different.