Insulation Job - Athlone, KZN, 3201

I want to purchase insulation material (double sided Alububble and Aluminium tape) to self install in a bakkie canopy as thermal insulation.
5 square metres of Alububble and 4 rolls of approx. 40mm wide adhesive Aluminium tape should do it. Do you also have 25 or 30 mm thick polyurithane or polysryrene sheets to fill cavities between canopy inner surface and Alububble (4 square metres)?.