Sounds good to me...
21" skimmer on a about a 4" "shelf" = 25"...you have 32" so there should be some 7" of "hand room" over the skimmer..
I say we take One of those inches for the overflow/skimmer/settling area..raise those baffles to 15"(B) and 14"(D) respectively...then there only a 3" drop from the fuge...
Lighting wont be a problem because it's over the fuge area and not the skimmer...
(Don't put lghts over the sump/pump/skimmer/overflow areas..you do NOT want algea to grow there...)