I would suggest Antergos based on Arch, in that case. You can select xfce as the starting de, and then install wm on top of it, or individually. You will get a

I would suggest Antergos based on Arch, in that case. You can select xfce as the starting de, and then install wm on top of it, or individually. You will get a working distro quite easily, and after that you can customize as much as you want, without having to go through the base Arch distro installation, which requires you to follow the excellent Arch wiki guides. I installed Antergos on a 4 years old laptop that I got recently, and it works fine seamlessly.