Hi, I need to upgrade original lap strap to 3 point seatbelt. I have heard that there are certified bars/mounting points maybe sold from Tauranga but I cannot find contact details.. I am looking for contact details of seatbelt fitters or suppliers. I am aware that the completed assembly will need inspection. I am based in Nelson. As an alternative does anyone have experience of fitting new seat with built in seatbelt into civilian?