For tubeless gravel I'd go hookless! I much prefer the squared tire profile of a hookless rim. Handling-wise it just feels stiffer on cornering and I can push harder on the turns. You'll never run 45c tires beyond 40psi. Mounting a gravel tire onto a hookless rim is even harder than a hooked rim. Unless you're doing 30 foot plus hard drops, that tire will never come off.
Even with wide internal width rim, a hooked rim will still have a bulbous tire profile. Road is a different matter, but for wide profile gravel tires I think hookless is great.
Although technically it is a gravel setup (Cube NuRoad Pro 2025) I use it for cardio / training - so a lot of tarmac and some very light gravel / general riding. Not sure if a square profile is good for paved roads?
Stock: Alexrims GRX25P 28H Novatec D981/2SB-SL with GK SS 45mm (measuring 48). That wheelset is at least 1,800g, could be up to 2kg (which wouldn't surprise me - stock wheelset on my Chisel 2022 were about that).
Looking at ~1,400g Ali offerings, this caught my eye:
https://www.aliexpress.com/item/1005011686393018.html Going with 35mm depth asymmetric option, the specs seem to be ok for the money.