I personally refined the old 1/144 Zok kit into a gunfire support mobile armor, as per its original specifications! 😆
It can easily transform into three forms: gunfire mode, hover mode, and underwater cruise mode, so the key point is "transformation"! (Some arm parts are interchangeable.)
Below are the build details and images of each of the three forms.
First, here's what it looks like in the mock-assembled form.
It definitely has the look of the old kit. 😁

The old kit's Zock transforms into three forms! | 睦月's Gunpla works