I have seen them before and am quite familiar with them, however, these are my first set to own. As for adapting them, I am sure it can be done if you wanted to, though it would take some planning. They are on ETO armor's website. Price is listed there. 265.00 for a set. Worth every cent on a tank you want durability from. The motors are bolted to a gear down assembly which is sealed. That beats the hell out of any type of cover you can make for the standard design boxes, and scale speed is correct with these also. And did I mention they are extremely quiet? That's a far stretch for any of the other types of TU's on the market. Most of them are louder than the engine sounds of the tank.