Just put a tape to the horn. But remember this is rough, I'm no official scorer or anything. I came up with 70 0/8.
Mass Measurements: 4 5/8, 3 7/8, 4 3/8, 3 3/8
Eyeguard: 1 7/8
Point at the base below the eyeguard: 1 2/8
G2: 14 1/8
G3: 6 1/8
G4: 12 4/8
Main beam: 22 0/8
I think my math is right, but I'm an English major so who knows.