u cant add that, its an 123mm axle inside a 72mm tube. final width would be axlelength - 2 x crankwidth at bottom + 2 x offset. i cant remember where it was but i ve seen cranks bended with heat to a greater offset, dont know whats the influence on integrity with that. i wont try it under heavy load, but who needs cranks on an overpowered ebike except for "looks like"?
edit: typo
just figured out u mean 2 x 32mm offset + 123mm right? sorry for that. then its about 185mm - crank width.