I don't think we ought to get into an argument about the shape of the Robt. E. Lee's hull on the basis of my recollection of what somebody said (or maybe didn't say) at a conference a good many years ago. I remember being extremely impressed with Mr. Fryant's presentation - and I know him well enough to know that he wouldn't make such a bold assertion about such a subject without having firm evidence to back it up - and the evidence, not the stature of the researcher, is what matters most. But I'm not prepared to state with absolute certainty that I heard him state the boat had a round bottom. (I probably shouldn't have mentioned the point in the first place.) I do remember quite clearly his assertion that all the kits allegedly representing the Lee were "wrong" in one significant way or another - and I believe him.
Anybody doing serious research on the Robt. E. Lee ought to get in touch with both Mr. Fryant and Mr. Bates (both of them have websites) and find out just what the existing primary source materials are. My strong suspicion is that those sources are scanty enough to allow plenty of room for different interpretations, but there's no point in every modeler re-inventing the wheel. I'd also be interested in taking a look at the plans Mr. Bates sells. I know he and Mr. Fryant are friends, and I remember Mr. Fryant making some reference to those drawings. I think he may have said that Mr. Bates was going to revise them in light of Mr. Fryant's research. But I honestly don't remember.
(Aging memory, as anybody over the age of forty or thereabouts knows, is a weird and frustrating thing. I find myself recalling conversations, pieces of writing, and events from twenty years ago with absolute clarity, but I have trouble remembering the names of my current students. My wife, who teaches psychology, tells me this phenomenon is fairly normal in people of my age.)
What I do know is that the little Revell kit's hull did get modified when the kit was reissued with an electric motor and the related parts (battery box, switch, etc.) when it was reissued. (According to Dr. Graham's book, the kit was originally issued in 1956 and the motorization parts were added for a re-release in 1961.) Every subsequent reissue of that kit that I've seen has had the deepened hull. (It looks like the original molds were altered. The parts that originally represented the boilers also got modified, according to Dr. Graham; I think they gave way to the battery box.) The revised hull pretty obviously is too deep for a Mississippi Riverboat. Shallow draft was essential for those vessels. It's up to the individual modeler to determine how important that point is.
If I were building a model of the Lee - from any kit or from scratch - I'd be strongly tempted to make it a waterline version. In addition to sidestepping the question of how the underwater hull was shaped, that approach would encourage displaying the model in a diorama-type base. The possibilities there are endless. You could show her tied up to a levee with cotton bales being hauled aboard. Or just making her way along the river, with a few snags sticking out of the water. Or maybe with a Huckleberry Finn-type raft passing by. Or....
Anyway, if the reissues of the Revell and Lindberg kits lead to a burst of enthusiasm for riverboat models, that will certainly be a good thing.
Youth, talent, hard work, and enthusiasm are no match for old age and treachery.