Here is an update on how I mounted the cowl. On each side top & bottom i used some .035 round stock so it would be flush with the countour of the sides. Then I used some flat stock tto keep the fron from being to high once I gluded it in.
I did glue 2 .040 square stock on the ends so once I had it posittion I could tack it to hold to make sure it lined up.