My Pantiger is a 2014 production, and have 6 screws below it (two screws in the front, 2 in the middle and 2 in the rear). Anyway, as long as they are the same size, I'll try to make them fit. The upper hull costs RMB85 only. It worth a try.
(I cut the shackles and shackle holders away to make room for tracks to climb easier)

Clark is not available in China (or on taobao.com), and I don't know why. The nearest place to order is Thailand and it cost another USD30+ for shipping. I always try the lowest costs though may sometime end up most expensive. However, I gain fun while doing things, right? The worst thing is there are very few tankers here and only two shops that sell Heng Long tanks and they do not always have stock.