Serioga, thats an impressive amount of work and a beautiful model. It makes me feel good to know someone half way around the world appreciates old Pete's. (I was a Peterbilt engineer for 15 years and sometimes get sentimental.)
Here's a piece of trivia you may already know: The reason most of the large "truck wreckers" like this have a big 63" sleeper is to add wheelbase so the front axle stays on the ground when the load is lifted. The drivers usually use them for storage, only rarely to sleep in.