I dont think the the decal markings are for A24-68. on closer examination there are two schemes provided. one with codes RKE and S/N A24-96, though the box description says its for A24-68
The ADF serials gives the following service details for A-24-96
42 Sqn 5/8/44.
Lost off Sumba Island, Netherlands East Indies. 1945-01-15.
Consolidated Catalina aircraft, serial no. A24-96, code RK-E of No. 42 Squadron RAAF, was destroyed by machine-gun fire. On the night of 14 January 1945, during a mission to Surabaya, a plane from No. 42 Squadron RAAF, captained by Flight Lieutenant (Flt Lt) Harrigan, experienced trouble with its port engine and immediately began to lose altitude. At the time Flt Lt Harrigan was flying at 300 feet below heavy cloud off Sumba Island. He jettisoned his mines, but the plane continued to lose altitude and he was forced to alight on the open sea. The hull of the Catalina aircraft was damaged and began to leak. However, the water was kept down by baling. Using the radio-telephone, the crew was able to make its position known to returning minelayers. All night they worked on the faulty engine, but without success. However, in the morning, a Catalina aircraft of No. 43 Squadron RAAF, captained by Flt Lt Ortlepp, landed in the heavy swell, covered by a Liberator aircraft, and took off Flt Lt Harrigan's crew. Flt Lt Ortlepp then destroyed the disabled Catalina aircraft with machine-gun fire and returned safely to base.
The AWM has an image which shows the registration codes to be RKE, the same as the matt black version I want to build. So, it appears to me that in fact the aircraft being simulated is A24-96 of 42 squadron, lost off Sumba Island january 1945
here is a link to the AWM site that shows its matches the above aircraft
NWA0736 | Australian War Memorial