Am currently working in US on L1B visa and my Visa is expiring on Nov 2019. Am planning to visit Australia on a Tourist/Visit visa during December 1-16 2019 to visit my friends. Am planning to fly from India to Australia at that period of time. I have following queries. appreciate your help in advance.

1. Can i apply online in US and select country of residence as US?
2. Since my visa is expiring in Nov, the recommended document says valid visa and right to return. But am planning to travel from India only. so selecting current location as US will cause any problems?
3. I have recently moved, so my payslips and bank account are still in India until now. can i show them as proof of funding?
4. How long will it take to process visitor visa?