Why hello there! Thanks so much for contacting me before filing an orphan request. ಠ_ಠ

As I'm sure you're aware, bringing a PKGBUILD back to life (especially when it lags behind by a few major versions) is a challenging task. The PKGBUILD for the latest stable version of Solr, v6.1.0 is nearly complete. Hang tight; I'll be pushing it up soon. :D