I'm afraid Shapeways have recently increased their prices on WSF models. Recent communications with customers suggest the White-Strong-Flexible material is more than suitable, but does need a primer-filler (Auto-shop, 'Duplicolour') paint to smooth out the 'powdery' finish. Similar to my '01' model, but with a larger diameter tank to match the bigger/modern prototypes more accurately. Please see the image of new (left) and old (right) trailer CAD models side by side for comparison. Wheel have now been 'fixed' to prevent manufacture problems. My thanks to Prof. Bill Guegold for pictures of his trailers. I look forward to seeing them all painted.