Thank you for putting this all down so clearly and succinctly, George. Wiki is a better source that it used to be, even for culturally controversial topics like this (though I’m not persuaded yet that their editors are as even-handed as they might be on some origins-related topics).
The last point in the article (which you mention), namely Price’s view of Rimmer and the gap theory, is not something that I would accept without looking further into it. Certainly he had a low view of the gap theory or any other view different from his own, but I don’t recall him saying anything specific about Rimmer. The article accurately quotes Rimmer’s appreciation for Price’s book, The New Geology, but the citation it gives for Price’s view of Rimmer can’t be right: the book cited there was published in 1902, when Rimmer was 12 years old.
At some point in the 1940s (I think that’s the right period), Price loosened up on his view of the “recent” creation of the universe, though he continued to insist on a recent biosphere. That caused the waters to part within Adventist circles and he lost some friends over it. That view–an older (maybe ca. 100K years) universe with a recent creation of all life–circulates today in parts of South America, but isn’t often found anywhere else to my knowledge.