I've wanted to build her one of two ways. First, as Cod SS-224, which was my personal play toy growing up in Cleveland. Something I didn't find out until the mid-90s is that she is the LAST completely unmodified Fleet boat; that is; she's not even had ladders cut into her for the tourists - if you want in, you do it through the fore and aft escape hatches. She looks exactly the way she did on VJ Day. If you can get aboard her or have someone to get pics, you can get accuracy to an unparalleled degree. On the other hand, I'd love to go Full Guppy and build her as Clamagore SS-343/GUPPY III as she sits today at Patriot's Point. Fortunately, the IBS and Nautilus sets are out there to do the conversion work - but for both I am wondering how to redo the limber holes once you've got the raised markings sanded smooth. First, as you mentioned, the limber holes aren't accurate for any Fleet boat - but my understanding (and I will happily confess to error here)is that each boat and/or contractor had distinctive hole patterns that are as individual as a fingerprint. I did the Revell U-47 cutaway many years ago and cut out the limber holes with an X-Acto and a file...not inclined to do THAT again, though. On top of that, the model is big enough that after you've got the limber holes cut, you can see through them, which means at least a partial pressure hull and everything that goes with it. Thoughts, sir?