Peter,

with 0.8 Optics this Setup would never work, as 0.8 needs to be "mostly" on axis.

With 1.2 and beyond the game looks easier as you got much more depth in your focus.

Regarding Distance this looks to me like a classic Zoom Lens like 1.5 - 2.5 or similar. And that's what I have done before with DL2s in this angle, which worked.