Help: Need #5 Rear Main Cap ??!! :( :(

I have a few laying around, but I'm in ohio, if you pay shiping you can have it.

Thank you very much. I might just do that. I only need one, but I think I need to round up a few to trial and error to see the fit. I can send back what I don't use. Even my current one.

I think I'm going to check local and hit some junk yards this weekend.

Anyone in So Cal with some 318/273 main caps??