I have RV-4 tail empannage kit, which comes with it’s plans sheets for tail empannage.
I also have a original complete RV-4 plan set, never used.
Buy both, put them to good use, they are just gathering dust here.
I don’t have time to finish. To many projects, one must go.
I might consider offers with a trade in of some materials that could be of interest to me for my other projects. Or something light and slow that is simple to fix and has removable wings.