You might consider two of the 4xQB132 packs and a HLG-320H-C1750A. That driver could power 5 QB132's up to 72W each when cranked up to 2A. That's 360W for 12.5 sqft, or 28.8W per sqft. It is over your budget, but you'd be left with 3 boards you can use for a veg tent in the future with another, smaller/cheaper driver.
I'm new myself so you should probably let others vet my advice LOL.