Here is what I came up with
-----------Right-- Left
Main Beam 21 -------21 2/8
G1 --------3 1/8-----3 4/8
G2 --------7 --------7 1/8
G3 --------7 --------7
G4 --------0---------2
H1 --------4 5/8-----4 6/8
H2 --------3 5/8-----3 6/8
H3 --------3 3/8-----3 4/8
H4 --------3 1/8-----3 1/8
Spread ----16 3/8
Total 125 3/8