1.4 timing chain idler different?

In the process of stripping and rebuilding an engine using a mix of parts from 3 different engines, I've noticed the timing chain idler mounting point on the head we're using is different to that of the other engines we have. So does anyone have, or know where to get hold of, this different idler for the cga3? I haven't seen any that seem different from the standard 1.0/1.3 in a quick look online

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