Convert natural gas BBQ to LPG

I have a Ziegler & Brown Twin Grill (sold by Barbeques Galore, which is no longer trading) looking to convert it from natural gas to LPG. I can bring it to anywhere in Sydney BBQ details (from the rating label): • Model: ZGTGNGE (Natural Gas). The LPG equivalent is ZGTGE (Universal LPG) • Serial: ZGTGNGER2023090133 • Date of manufacture: September 2023 • IAPMO/GasMark number: GMK 10827 • Current NG setup: 1.52 mm burner injectors, 1.0 kPa burner pressure • Target LPG setup: 0.92 mm burner injectors, 2.75 kPa burner pressure • Gas use: 11.6 MJ/h per burner, 23.2 MJ/h total (two burners) The manual specifies an LCC27 safety hose and regulator for LPG, with a 3/8" SAE (5/8" UNF) right-hand thread at the barbeque connection. It will be used with a swap n go LCC27 cylinder.