I cannot comment on the rest of it but that shaft length and aft underwater hull looks out of proportion, the engine space would be cramped forr no good reason
Photos can prove it
This design of "deep-V" ship body similar to Soviet Project 1124 small ASW ship (Grisha-class corvette), to gain good seakeeping and enough space.
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"In order to oppose the imperialist aggression, we must establish a powerful navy."
Chairman Mao Zedong
为了反对帝国主义的侵略,我们一定要建立强大的海军——毛泽东