I'm surprised by your Raw estimates (particularly English) considering your school rank, but if they are accurate then Oblv.ninjas estimate won't be far off.
My own estimate based on internal ranks alone would be 96.7
When I get my results, I will probably know that I am a very nice marker haha.
But seriously, whenever I did a past-papers for Chem and Physics, the lowest I would get is 80, and that was due to silly mistakes or missing the one word in the marking criteria. For ext.1, I would usually get over 85%, and I was sure that I got above 90% raw, but when I marked it at home, I only got around 78% raw. Ext. 2, I would usually get 70% raw, but I stuffed up the last question in HSC, thus a 64%. IN English, all my essays were 16/20 or 13/15 minimum. Max was 19/20 and 14/15.
The internal estimate seems a bit more like what I would get. I'm still estimating a 93 though.
The values I put in ATAR calculators are the ones that best case scenario past students had at my rankings internally:
Eng: 85
MEX1: 90
MEX2: 75 (I'm not sure if anyone in our school has ever gotten above 80 for MEX2)
Physics: 80
Chemistry: 85
Eco: 70 lol
That's my estimate, which seems a bit more legit for someone at my school.