We like #156, #158 and #159. Is there a way to mesh the ideas of those 3 into 1 design, without it becoming too crowded? Might not be possible, but we like elements from all of them - the "Building" as the Letter I, the sweep from the A back around, the orange horizontal curve, and the gear element. Actually, using #158 as the base for any further iterations may be the strongest starting point.