So unfortunate this is all becoming real..
Its nowhere near real as-yet.
The neighbourhood received the notice for community consultation meeting, please show up if you are against it (even though we can only reduce the height but not cancel the project)...
By all means, you and your neighbours should participate in the process; I would never discourage engagement or encourage apathy.
But
@ProjectEnd has spoken on this; we're there any doubts.....this proposal as currently structured is not viable, certainly not in the current market, but probably not in a much better one either.
That said, on the off chance any builder finds a variation here that could work; it would be be my suggestion that you focus on items other than height, for the simple reason that i don't think you'll find +/- 10s on 1, 2, or 6 buildings actually makes a huge difference to you.
You're likely better off focusing on quality of life concerns, everything from unit mix, to tenure, to public realm / parks etc.
IF you haven't already done so, have a good look up thread at the detailed comments, they will give you many jumping off points.