i'm also having a serious case of skipper's remorse re: Spitfire.
i swatched it in the store several times and decided it wasn't anything special and that i had tons of similar stuff. only later did i realise what a beautiful colour it was and that i had nothing remotely like it in my stash.
i searched on the bay of evil, but no luck 
i might as well give up and start looking for dupes. any suggestions will be most appreaciated. TIA.