No, it is not possible. And the throwing out quest items goes under the "doctor, it hurts when I do this"-"well, then don't do it" principle.
-- Rustyx --- 92R / 92S / 92M on Reni (Guild KnightShift). Yes, running the new FOTM R/M, cause I am not elf enough to be WD/S.
Oh, and people who have more than 3 classes are clinically insane.