We can try to modify hull design, will be a not easy work (portholes also will be repositioned, deck textures will need a remap ecc), but we can try this.
Looking at your drawn, i see some structures between funnels need to be a little enlarged or repositioned. Is this drawn really accurate?
ps i've used a little "out o scale" lenght (drawn is a little larger than model here) just for highline differences in bow and stern design. Final lenght shouldn't be touched (i think).
EDIT:
Structures between funnels fast corrections: