>>10568331A 32 stud overhang would take some serious engineering to pull off successfully but it's perfectly achievable. I just you look up real building schematics for cantilever structures.
I have attached a simple drawing of what I suggest. You will need a strong core structure. From this core structure you can extend your overhangs. Use long beams for this, preferably the ones with technic holes. Support floor above with technic beams attached to lower floor, angled like this will be better for weight distribution. You will need to counterbalance your overhang regardless of how strong the core is. You can do this either by mirroring it on the other side or with weight applied to where the arrow is pointing.
if you can't figure this shout out by yourself you should stick to duplo desu
