Would a acer predator 1080p be good for a 1080ti build?

It's overkill, IMO. The GTX 1080Ti would show its max. potential in 1440p/~144Hz++ and higher resolutions.

If using the Acer 1080p, the GTX 1080 would suffice (or even the GTX 1070, depending on the games you play and in-game graphics settings you use).