Whatever idea you have, forget it. Either sell it or store it in your home country. Your car will not drive on Thai roads. Get over it or find a different country to live. Smarter more well funded people have tried and failed
No, they intentionally make it very hard to break and do not have a clear 180 day rule.
Even if you live in Thailand 365 days a year living in a Condo you bought, if you merely think Australia is still your home, you're still a tax resident. The battle and onus is proving your not.
I recommend keeping an Australian licence valid, an Aussi phone number and Australian bank accounts ope. On your tax return say you are still an Australian tax resident