I hadn't thought about any eyewall replacement cycles...it is kinda amazing that this thing has deepened this much today without one...
I really hope you are wrong about it being a strong Cat 4 or a Cat 5....but I dont think you are....
lets just pray it goes through one when it is hitting land...
If I had to make a call, I'd say it tops out around 155-160 late tonight/tomorrow am. From there, I don't see it being able to sustain that till landfall. I'd put landfall just west of the MS/AL border at 145mph.