Surftravellers

We own a 92 2.4litre hi luxe surf. We have a rooftop tent from a previous Nissan terrano and wish to put on our surf. Auto one says brackets for this can only be sourced from interstate is in anyone in Perth and can they help me source brackets here or find them for me or does anyone have them second hand that they wants to sell please? Call me 0431957013. Thanks