I purchased an older 1/48 Revell A-6E Intruder at an estate sale some time ago. The box was open, but all the bags were still sealed and it looked like all the parts were there. I recently started the build on it. I removed the fuselage sprues from the bag, removed both fuselages, and found that I had two complete right side fuselage assemblies. The left side sprue was missing. I contacted Revell, and of course they didn't have a replacement since this was from 1988. I checked the internet and couldn't find the missing sprue. Any body have any leads where I might find theses parts. How rare is it to find identical parts in any kit?