意見 001, at the earliest 是最貼切答案。

I shall give that to you as soon as possible within tonight (wow) .

I can only make it for you as soon as tonight. (I hope it seems reasonable...)

我最快都要今晚先整到比你喎

I can only have it made (get it done) for you by tonight at the earliest.

The soonest I can have information ready for you will be tongiht.

最快都要 英文點講? no sooner than

我最快都要今晚先整到比你喎

I can give you my work no sooner than (tomorrow, Tuesday ?)