I have the same trailer but the form they sent me has #9 as the height of the trailer. Maybe they changed forms for v-nose since I ordered. I made up mine own drawing and sent it to them to cover some of the v-nose requirements. Send me a private message with a personal email address and I will send you all the measurements I gave Cal-Mark. We have used it for two winters now and love it.
Randy and Patty
2015 Sabre 33 CKTS-6 Platinum Edition
Reese 16K Slider hitch
2014 Ram 2500HD Crew Cab 6.7 Cummins Diesel