P-51B/C fin fillet?

I want to build a specific P-51C in 1-32, but can only find P-51B kits that do not have the fin fillet. I know - the fin fillet is not indicative of P-51Cs, but most people assume it does and I don’t want to make waves over it.

Does anyone know of an after-market resin fillet or perhaps an online article that addresses the issue through scratch building? … Or do I need to graft a filleted tail section from a P-51D?

Any guidance you guys have would be appreciated.

Step 1: Buy some sheet styrene

Step 2: measure fillet size from a P-51 D at scale

Step 3: Cut styrene into a triangular shape, radiusing the base

Step 4: bend and install on model

Step5: fill gaps as necessary

Step 6: Prime, inspect, paint

I think Crocket is correct. I don’t know of any AM fin fillet & the one from a D model would be too large.

Regards, Rick