Yes, two mounting points on roll-bar. They're covered with plastic caps. Plug and play.
Outer lap mounts are just outboard of the seat bottoms. Lap belts mount to them.
Bolts are 7/16-20 thread or somewhere around that.
Someone on Yotatech or here said a Subaru shoulder-seatbelt fits. i used seatbelt and mechanism from Toyota pick up. Unfortunately, they're a little slack when unused but fit well when worn.