This sounds like you want to do what current OSE (if you buy basic &advance or the upcoming revised release) is to the b/x & 1e, in that you'd end up with more of a thing that's a 1.x more than a straight 1e clone. Which hey I'd go for if you think there's a niche for it . The specific flavor...
The funniest thing is I'm mostly reminded of the situation regarding the Rebel Moon TTRPG that was suppose to come out before the director's cuts but was cancelled.