Seat belt options for a convertible

[Fluid Power]

Guys, need advice for seat belts. I am running Corbeau seats, was going to run a 5 point harness, but not sure how to mount the belts. I understand not mounting them to the floor. I am going to use the back seat for the little ones, so mounting to the rear seat belt positions is out. Harness bar is an idea. Thoughts?

Darren