Yes, your specs are good. [up] Just expect dips in frame rate (less than 30) once you start going past 5,000 guests. You can lock guest count in the options to keep frame rate more stable but your specs are definitely "above the norm" compared to most.
Yes, that setup runs the game quite well. It will run large parks at approximately 18 fps. This is the only setup that I can give an estimated fps on because it looks like my own setup: i7-6700K + GTX 1060 6G + 32 GB RAM + SSD.