I just put one on my NX750 last week, it's not too complicated, the hardest part for me was holding it up while I took a marker and outlined it on my hull....here's a trick that I used, I took some really strong tape and taped it on my keel the night before then took some painters tape and outlined the whole thing and left all of it on the whole night to help it form to the shape of my hull...the next morning I took a razor and went around the outline and left the tape on, then done all the scuffing and wiping. Leaving the tape on gives you a better reference line to go by when you apply it with the adhesive, plus you don't get anything on the other sides of your boat. After that go get your Marine sealant and put a small bead all around the edges.

Hope this helps,