1965 Valiant convertible pillar post weatherstrip patches

I have found where my car leaks water and it's between the header seal and where the vent wings meet the top. There are two original rubber patches that finish the seal only they don't! I may have to modify the area but has anyone seen these in aftermarket or NOS? Any help would be appreciated as spring and rains are coming (as do car washes). Thanks.IMG_1605.JPG