Per an article by Dick Harley, the Interus kit is a lot closer to accurate than the Emhar kit. Downside is that the space between the inner and outer trackframes on the Interus kit is 10mm when it should be 8mm. This throws off the front and rear turret, which end up being too narrow by about 6" in 1/35th scale. I'd also get a good set of drawngs for the sponsons, as they're a bit off as well. At least when you get a set of tracks from AA, they won't go to waste. You can also make up the kit as a 301st Tank Battalion vehicle, as they operated "Composites". Good luck - post some pics as you work!