I am using Bitex hubs, DT swiss 460 rims, and double butted spokes throughout. I’ve not managed to even knock them out of true. I am at about 1500 or 1550, I can’t remember.
Had I used Mavic Open Pro tubeless or Stans alpha 400 the wheel set would be 80ish grams lighter and probably just as strong.
My advice, buy your hubs first then your hoops. I could have gotten some sick closeouts on 28 or 36 hole hubs (both fine for gravel) but couldn’t because I was already sitting on a couple 32 hole rims.
I am not the worlds best wheelbuilder but I find it fun and meditative. It’s not hard to do if you aren’t dead set on a big ride the next day (start small, just in case something is wrong). It saves a bunch of money and it makes you feel like a craftsman. Plenty of online information exists.