I’ve bemoaned the cost and rarity of biblical commentaries on the Apocrypha/ Deuterocanonicals more than once, so I should mention that Logos Bible Software is offering a prepublication “get in early, get in cheap, and get it published” price on classic commentaries on these works of biblical literature. Publication dates range from 1823 to 1935, with most of the 42(!) volumes dated 1880-1920. You simply won’t find this much stuff on the Apocrypha/Deuterocanonicals anywhere else.
Place your bid here if you are a Logos user, and if you aren’t, check out their site here.