I've been creating my own airfield over the past month or so, and I'm looking for decent aircraft to inhabit it.  The only problem is I detest most AI-ready aircraft because they're TOO simple.  My criteria are pretty simple: I want something that is intended to be flyable, but has a low framerate hit.  It also needs to be either a single or twin prop.  That's about it.  Any and all suggestions are welcome!

Of course.  Can't believe I forgot about the Stone aircraft!  Thank you, Mister Hagar!