Have been thinking of rad and fan but on the other hand, and as you indicate, it will get crowded enough under the hood and the hydraulic system is not at all used as much as e.g. in an excavator and there are a lot of excavator models without rad and fan. So much for operational rad and fan. Still, there has to be at least a fan and something locking like radiators since they are clearly visible from the outside. Sure the hood will open as on the real thing. 3D printability is a bit dependent on how delicate the parts must be, have a look at shapeways.com. Thanks a lot for the picture offer! Nice to know someone having access to a 970, and a bit envy, too...