I am going to be installing the deck beams on my chesse 16. I saw the placement for the front deck beam measurement, however, did not see he placement for the rear beam? Also, I took the beams off the jig a whiloe ago, will that make a diffrence or will they keep their shape enough? Also, I cut out the bulkhead panels and put them in place. I assume they go were they fit or are there measurements as well for thier palcement?