I bought the thruhiker pattern, and am adding a hood, deleting the pockets, and cutting the zipper back to a half zip. With the pattern, and directions they gave it seems like I should be able to alter the design to get what I want. Their directions are very good and easy to follow, so adding or removing my changes seems to be working.
I got the hood pattern off of an older MYOG post. Very simple to make, if you want the pattern and can't find which post it was in pm me and I will email the pdf.