Oh WOW,
It would be maintained as long as it's possible to, you can see the situation of the balance left at any given moment!...
...
For this to work We Need LARGE support level...
I don't think you understand the word 'guarantee'.
You cannot 'guarantee' something that might not work.
Note you say "it would be maintained as long as possible" - this is not the same the as "guarantee it will be maintained".
Note that you claim there will be 'guaranteed' support in the original post and that the wall 'will' move up over time.