I want to read Siege in order to read Journey into Mystery v4 (I know it is directly derived from Siege). I haven't read almost anything since Avengers Disassembled, but I plan to read House of M, Civil War, New Avengers, etc. I think I know the most relevant facts that happen in that period (the existence of the Registration Act, the decimation, Captain America's "health problems", the Winter Soldier, Norman Osborn recruited the Dark Avengers...)
What are the bare minimum issues I have to read related to Siege? The Trade Paperback ones are all mandatory (I'm very reluctant to read the last issues of New Avengers)?. This list leaves New Avengers apart, but includes Thor issues.
My main goal is to avoid major "surprising" spoilers from Disassembled to Siege (i.e. I don't mind to discover that now the Hood rules the underworld; I would mind to discover i.e. that to get there he got Galactus to devour the Kingpin, or that he is the secret son of Gwen Stacy and the Winter Soldier; Captain America's return is no surprise to nobody; how it returned would be). Is it feasible?.
Thanks in advance.