This kit is very easy the only knock i had was the is no glass for the windows just empty frames. The tracks are 1 piece except the back suspension arms and those are 2 pieces each side. The cab is 1 piece the interior is just 3 pieces. the back is 1 piece with a couple of add on details all in all easy. The parts fit very well no warping in my kit. If you need a tractor for your artillery this is the kit. The open bed took the ammo that came with my 155mm long tom so good all around.