I'm really looking forward to hearing from you on this; I'm going off the grid for the weekend (Laguna Seca WSB), but will check in Monday.
The thesis seems similar to that of Terror and Liberalism by Paul Berman. I don't do it justice, but one of Berman's points is that a fascination with suicide as a measure of commitment was one of the Islamists's borrowings. Berman found English translations of part of In the Shade of the Qur'an and explains what he found.
I appreciate your analysis of Qutb's work very much, by the way.