Don't know if you know how to score, but I gave him the following guesstimates.

right beam - 17"
right G1 - 2"
right G2 - 9"
right G3 - 4
right H1 - 4"
right H2 - 3.25"
right H3 - 3"

Total - 42.25"

leftbeam - 17"
left G1 - 3"
left G2 - 8"
left G3 - 5"
left H1 - 4"
left H2 - 3.25"
left H3 - 3"

Total - 43.25"

I gave him 16" for spread. According to my guesses, he would end up at 101.5" My final guess would be between 100-105".

For comparison sakes, this is my personal best buck and he measured 89". Yours has longer G3's and browtines and is wider.