In his commentary on Revelation (in Greek Commentaries on Revelation (Ancient Christian Texts) , Oecumenius interprets the millennium as the period between Christ’s incarnation and His ascension. During “the time of the incarnation of the Lord, the devil was bound and was not able to resist the marks of the Savior’s deity” (87). He is probably the only commentator ever to offer such an interpretation.
On the other hand, the “little while” during which Satan is released is “the time between the incarnation of the Lord and the consummation of the present age.”
So a big number represents three years, and the phrase “a little while” stands for thousands? Oecumenius has what you call an uphill battle to make that one convincing.