If someone with an O'Day 25 could let me know the measurement from the frame to the start of the bunks to allow for the glassed in part of the keel that would be great. I have the drop down keel model. I recently bought a used trailer on which I know I need to raise the bunks but I am unsure how high to accomodate my '79 model. Any pictures would be appreciated too. Thanks in advance kennybc22@sbcglobal.net