I’ve got the knockoff sunwayfoto IB-30 and an RRS anvil 30. The sunwayfoto is much smaller, doesn’t clamp as rigid at all and a gun clamped in has WAY more wobble than with an anvil30.
That said, with a tac table and a bag on top, the difference in wobble isn’t as much. Or skip the head altogether and just spin a tac table on with 3/8 threaded insert or 1/2” plywood with a t-nut.
You can get away with a much lighter/cheaper tripod, with or without a head if you are shooting off a bag instead of locked in with an Arca plate on the rifle. At least that’s my experience. The leofoto 3 section 323 is fine if shooting off a bag, and pretty light for packing, and is dirt cheap.
If I wanted to shoot locked in with arca for $500 I’d be looking for a beefy 2 or three section and a good ball head which I don’t think I’d find unless used. So I’d just make do with a bag on a tripod and then probably realize I don’t need a ball head anyway.