I have a 1/6 scale metal hulled Tiger, I found it on display at a hobby shop in California, the company that make this tank is out of business and the display was static and the last one. UPS delivered it with some new detail added a fork lift truck has speared it and shattered the tracks and one drive sprocket for which I received very little in the form of compensation.
Steel dragons offers metal kits of many tanks, but not the Tiger,the offer a plastic version, but there kits are under a 1000us and can be upgraded to RC. i have considered working out a deal with them to use my tank as the example of a steel hulled tiger for market but have not heard much from them, the aluminum replacement drive sprockets are 250.00us Tracks are 600.00us
My tracks are made from a type of UHMW Plastic very hard and strong, I was able to use the turret spare tracks to repair the broken tracks, but have yet to replace the sprockets. If you would like to give it a go I could provide the pictures and you may find them acceptable to scale the tank for building.the upper hull is steel as well with detail parts glued on the surface. The turret is a type of molded fiber glass very hard and the detailing is fair.