I've always wanted a PDP11 but having never used one I'm overwhelmed when looking for them. I have no way of knowing if I'm buying the right parts or how to tel

I've always wanted a PDP11 but having never used one I'm overwhelmed when looking for them. I have no way of knowing if I'm buying the right parts or how to tell if they function. Are there any retro recreations of PDP machines? All I've ever been able to find are emulators.