67 Barracuda Vert Shoulder Belts Backseat

I came across the Wesco Performance setup in my search as well. It does look pretty good. Im just surprised someone hasn't come up with an integrated back bench seat option. I have seen 2002 BMW M seats used with the integrated seatbelt for less than $300 used. Could maybe modify it a bit and put an original Mopar seat cover over it....as a thought. I have 2 boys myself I'm looking to put in the back.