I finished this one last year, I thought I had posted images but can't find a thread.
It is the venerable Hasegawa P-3C kit converted to a P-3B. I used a locally produced conversion set which included the searchlight and a blanking plate which replaced the sonobuoy chute panel piece. I also used a locally produced weapons bay (from the same manufacturer).
This aircraft (A9-300) was damaged beyond repair by a cockpit oxygen fire during maintenance in 1984 and was written off.