A quick look at the CDG 3D printed model of the E75 tank with a 105mm gun
http://smww2andnapoleonic.blogspot.co.uk/2016/04/e75-standard-tank-tiger-iii.html (http://smww2andnapoleonic.blogspot.co.uk/2016/04/e75-standard-tank-tiger-iii.html)
Steve
That's a big bit of small kit!