Striated Grass-wren, Red-lored Whistler, Orange Chats & Black-eared Miner

Hi Everyone, My son and I are planning a trip to NW Victoria over the next few weeks to look for some Mallee bird species we are yet to see including Striated Grass-wren, Red-lored Whistler, Orange Chat and Black-eared Miner. We’ll probably stay at Pink Lakes National Park and are only able to access 2WD tracks in our Ford Territory. If anyone can give us some pointers to find these bird species we’d be most appreciative. Cheers Martin Woodward