If you get 2 seater mounting brackets and make them taller and then weld in captive nuts to the top of each strut tower to mount them you'll have enough clearance for the seat then just buy a set of 2 seater belts from Hemco here in Ballarat at about $130 a pop. Problem solved. I may even have a part number for the belts but the stalk will have to be different because the front ones are rigid and longer than the rears.