English to Persian (Farsi) Art/Literary Poetry & Literature

Hello.
How would you translate "a hundred thousand miles beyond its best days"?

Not a spot of silver. Not the roof of an old, battered truck that was already a hundred thousand miles beyond its best days. Instead, I spy a gouge of black appearing, then disappearing amid a field of murky green. I wait for the lake grasses to ripple left, then I see it
again, a dark stripe, then another, and another.