S2 7.9 Meter Class Association

I am in the process of ordering a loadmaster trailer for the boat. I was sent a form to fill out on the measuremnets for the hull. The way our current trailer is layed out It is very hard to get underneath the boat much less with a 4ft level and tape measure. I was wondering if anybody has gone through this process and has the measurements for the hull. I may be forced to have the boat raised up in the air to get them.

Thanks

Quinn