First off, I love Topre Hipro keycap profile, so I'm fairly excited for this set, particularly the dawn colorway.
But as some pointed out, R3 1.75u Control would be greatly appreciated. Why is there a R4 Page Up and R1 Page Down? There should be a R4 End, a R3 Page Down, and a R2 Page Up. Maybe make "ScrLk" into "Lock" like how it is in some SA sets such as Camping, but this is more just preference if anything and isn't necessary, I just find "Lock" to look more appealing to the eye than ScrLk. If the set is under $100 after MOQ like you say you aim to do, then IMO the numpad can stay in the kit, but removing it and making it a separate kit could make it more appealing in price to some people depending on the decrease if it were removed. But if that's not feasible, then I'd suggest separating the numpad kit then, but it should still be in the set whether as a kit or in the base regardless.