You might get away with two minutes, but an eight - minute trailer needs the eyes and
ears of a good editor, no matter how famous the author.
The
best editor in the world can't turn a sow's
ear into a silk purse and even if one freelance
editor tells you straight - up that your work isn't
good enough, trust me, you will be able to find one to edit it as
best she can, wash her hands
of it and let you do as you wish with it.