as a fellow oz I know your pain. If you don't have an external monitor or rig and just want a cheap sun hood, I'd recommend getting these  https://www.ebay.com.au/itm/L128-PAD-Monitor-Hood-Sunshade-Sun-FPV-For-DJI-MAVIC-Phantom3-4-PRO-SPARK-Osmo/153351269249?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 works like a champ