I would have gone with the 250 'Neu' pattern halftrack as this unit was almost completely re-equipped with new vehicles. I see you had some fit issues between the upper and lower hull halves which is pretty normal for this older kit. Plastic strip with putty would make it go away (the gap, not the kit). It's good that you turn out so many dioramas, but if you spend a little more time on model building you will raise the quality of them immensly.