I was just wondering if it was possible to make it where you can kill another player inside your building privilege (with pve) in case other players run inside your base and wont leave (since you can't kill them).

What we do is just build a jail around them when the go to sleep and a shotgun trap or turrent to kill them if the admin also has a PVP timeframe.

The admin could also kill them for you, if there is a rule in place, no raiding bases for example and just entering someone else's base that is not your friend is considered raiding. If I were you, then I ask the admin to kill them or do the above.

I think there is a plugin on here somewhere that would create a zone for each user building.  Perhaps that would then allow exclusion of TruePVE.