Looking for 1/35 UH-60A parts from AFV Club Tiawan S-70C

Does anyone have or know where to get the resin parts to convert Academy's 1/35 Blackhawks to an A model? AFV Club has reboxed the Academy kit with extra resin bits to make a civilian S-70C (UH-60A teardrop shaped exhaust). Here is the kit and the resin bits.



The kit goes for $90, don't want to pay that for just the resin A exhaust parts (two bottom pieces). Anyone seen these anywhere else. These would be great for a SH-60B conversion.

Thanks.